diff --git a/src/game/chr/chraicommands.c b/src/game/chr/chraicommands.c
index 83d098b7a..1b850b2e0 100644
--- a/src/game/chr/chraicommands.c
+++ b/src/game/chr/chraicommands.c
@@ -10290,7 +10290,7 @@ bool aiChrBeginOrEndTeleport(void)
 	u32 playernum;
 	u32 prevplayernum;
 	s32 audiopri;
-	s32 c;
+	struct audiohandle *handle;
 	fvalue = 0.4;
 	chr = chrFindById(g_Vars.chrdata, cmd[4]);
 	prevplayernum = g_Vars.currentplayernum;
@@ -10312,10 +10312,10 @@ bool aiChrBeginOrEndTeleport(void)
 		mainpri = osGetThreadPri(0);
 		audiopri = osGetThreadPri(&g_AudioManager.thread);
 		osSetThreadPri(0, audiopri + 1);
-		c = audioStart(var80095200, 0x0433, NULL, -1, -1, -1, -1, -1);
+		handle = audioStart(var80095200, 0x0433, NULL, -1, -1, -1, -1, -1);
 
-		if (c) {
-			func00033e50(c, 16, *(u32 *)&fvalue);
+		if (handle) {
+			func00033e50(handle, 16, *(u32 *)&fvalue);
 		}
 
 		osSetThreadPri(0, mainpri);
@@ -10339,7 +10339,7 @@ bool aiIfChrTeleportFullWhite(void)
 	s32 mainpri;
 	f32 fvalue;
 	s32 audiopri;
-	s32 c;
+	struct audiohandle *handle;
 
 	if (chr && chr->prop && chr->prop->type == PROPTYPE_PLAYER) {
 		u32 playernum = propGetPlayerNum(chr->prop);
@@ -10353,10 +10353,10 @@ bool aiIfChrTeleportFullWhite(void)
 		mainpri = osGetThreadPri(0);
 		audiopri = osGetThreadPri(&g_AudioManager.thread);
 		osSetThreadPri(0, audiopri + 1);
-		c = audioStart(var80095200, 0x8055, NULL, -1, -1, -1, -1, -1);
+		handle = audioStart(var80095200, 0x8055, NULL, -1, -1, -1, -1, -1);
 
-		if (c) {
-			func00033e50(c, 16, *(u32 *)&fvalue);
+		if (handle) {
+			func00033e50(handle, 16, *(u32 *)&fvalue);
 		}
 
 		osSetThreadPri(0, mainpri);
diff --git a/src/game/core.c b/src/game/core.c
index 3a3c5dfb5..c9f9e303e 100644
--- a/src/game/core.c
+++ b/src/game/core.c
@@ -1214,7 +1214,7 @@ Gfx *coreRender(Gfx *gdl)
 				gdl = func0f130044(gdl);
 				gdl = weatherRender(gdl);
 
-				if (var80061640) {
+				if (g_GasActive) {
 					gdl = func0f00a168(gdl);
 				}
 
@@ -2180,12 +2180,12 @@ void coreTick(void)
 		func0f13eb44();
 		func0f149864();
 
-		if (g_WeatherEnabled) {
+		if (g_WeatherActive) {
 			weatherTick();
 		}
 
-		if (var80061640) {
-			func0f009eac();
+		if (g_GasActive) {
+			gasTick();
 		}
 
 		coreUpdateMiscSfx();
diff --git a/src/game/data/data_003dc0.c b/src/game/data/data_003dc0.c
index 37f8bc0aa..9dd2f4ec4 100644
--- a/src/game/data/data_003dc0.c
+++ b/src/game/data/data_003dc0.c
@@ -3074,7 +3074,7 @@ f32 var80061630 = 0;
 u32 var80061634 = 0x00000000;
 u32 var80061638 = 0x00000000;
 u32 var8006163c = 0x00000000;
-s32 var80061640 = 0x00000000;
+bool g_GasActive = false;
 u32 var80061644 = 0x42c80000;
 u32 var80061648 = 0x00000000;
 u32 var8006164c = 0x00000000;
@@ -3115,7 +3115,7 @@ u32 var800616d4 = 0xbf800000;
 u32 var800616d8 = 0x00000000;
 u32 var800616dc = 0x00000a30;
 u32 var800616e0 = 0x00000330;
-u32 var800616e4 = 0x00000000;
+struct audiohandle *g_GasAudioHandle = NULL;
 u32 var800616e8 = 0x00000000;
 u32 var800616ec = 0x00000000;
 u32 var800616f0 = 0x00000000;
@@ -3131,5 +3131,3 @@ struct stageheadlimit g_StageHeadLimits[3] = {
 
 u32 var80061708 = 0x00000000;
 u32 var8006170c = 0x00000000;
-
-
diff --git a/src/game/game_006bd0.c b/src/game/game_006bd0.c
index 70740bc8f..662b44080 100644
--- a/src/game/game_006bd0.c
+++ b/src/game/game_006bd0.c
@@ -41,51 +41,6 @@ const u32 var7f1a7ea4[] = {0x00000091};
 const u32 var7f1a7ea8[] = {0x0000008f};
 const u32 var7f1a7eac[] = {0x00000090};
 
-const u32 var7f1a7eb0[] = {0x40c90fdb};
-const u32 var7f1a7eb4[] = {0x40c90fdb};
-const u32 var7f1a7eb8[] = {0x40c90fdb};
-const u32 var7f1a7ebc[] = {0x40c90fdb};
-const u32 var7f1a7ec0[] = {0x40c90fdb};
-const u32 var7f1a7ec4[] = {0x40c90fdb};
-const u32 var7f1a7ec8[] = {0x40c90fdb};
-const u32 var7f1a7ecc[] = {0x40c90fdb};
-const u32 var7f1a7ed0[] = {0x40c90fdb};
-const u32 var7f1a7ed4[] = {0x40c90fdb};
-const u32 var7f1a7ed8[] = {0x40c90fdb};
-const u32 var7f1a7edc[] = {0x40c90fdb};
-const u32 var7f1a7ee0[] = {0x40c90fdb};
-const u32 var7f1a7ee4[] = {0x40c90fdb};
-const u32 var7f1a7ee8[] = {0x40c90fdb};
-const u32 var7f1a7eec[] = {0x40c90fdb};
-const u32 var7f1a7ef0[] = {0x40c90fdb};
-const u32 var7f1a7ef4[] = {0x40c90fdb};
-const u32 var7f1a7ef8[] = {0x40c90fdb};
-const u32 var7f1a7efc[] = {0x40c90fdb};
-const u32 var7f1a7f00[] = {0x40c90fdb};
-const u32 var7f1a7f04[] = {0x40c90fdb};
-const u32 var7f1a7f08[] = {0x40c90fdb};
-const u32 var7f1a7f0c[] = {0x40c90fdb};
-const u32 var7f1a7f10[] = {0x40c90fdb};
-const u32 var7f1a7f14[] = {0x40c90fdb};
-const u32 var7f1a7f18[] = {0x40c90fdb};
-const u32 var7f1a7f1c[] = {0x40c90fdb};
-const u32 var7f1a7f20[] = {0x3c23d70a};
-const u32 var7f1a7f24[] = {0x3d565b7b};
-const u32 var7f1a7f28[] = {0x3d4ccccd};
-const u32 var7f1a7f2c[] = {0x3d565b7b};
-const u32 var7f1a7f30[] = {0x3ca3d70a};
-const u32 var7f1a7f34[] = {0x3ecccccd};
-const u32 var7f1a7f38[] = {0x46fffe00};
-const u32 var7f1a7f3c[] = {0x3ecccccd};
-const u32 var7f1a7f40[] = {0x3ecccccd};
-const u32 var7f1a7f44[] = {0xc6557000};
-const u32 var7f1a7f48[] = {0xc4b82000};
-const u32 var7f1a7f4c[] = {0x3e4ccccd};
-const u32 var7f1a7f50[] = {0x40c907a9};
-const u32 var7f1a7f54[] = {0x453b8000};
-const u32 var7f1a7f58[] = {0x00000000};
-const u32 var7f1a7f5c[] = {0x00000000};
-
 f32 func0f006bd0(f32 arg0)
 {
 	s32 ival = arg0 * 4.0f;
@@ -108,6 +63,38 @@ f32 func0f006bd0(f32 arg0)
 
 GLOBAL_ASM(
 glabel func0f006c80
+.late_rodata
+glabel var7f1a7eb0
+.word 0x40c90fdb
+glabel var7f1a7eb4
+.word 0x40c90fdb
+glabel var7f1a7eb8
+.word 0x40c90fdb
+glabel var7f1a7ebc
+.word 0x40c90fdb
+glabel var7f1a7ec0
+.word 0x40c90fdb
+glabel var7f1a7ec4
+.word 0x40c90fdb
+glabel var7f1a7ec8
+.word 0x40c90fdb
+glabel var7f1a7ecc
+.word 0x40c90fdb
+glabel var7f1a7ed0
+.word 0x40c90fdb
+glabel var7f1a7ed4
+.word 0x40c90fdb
+glabel var7f1a7ed8
+.word 0x40c90fdb
+glabel var7f1a7edc
+.word 0x40c90fdb
+glabel var7f1a7ee0
+.word 0x40c90fdb
+glabel var7f1a7ee4
+.word 0x40c90fdb
+glabel var7f1a7ee8
+.word 0x40c90fdb
+.text
 /*  f006c80:	27bdff78 */ 	addiu	$sp,$sp,-136
 /*  f006c84:	afbf003c */ 	sw	$ra,0x3c($sp)
 /*  f006c88:	afb30038 */ 	sw	$s3,0x38($sp)
@@ -1723,6 +1710,32 @@ glabel func0f006c80
 
 GLOBAL_ASM(
 glabel func0f008558
+.late_rodata
+glabel var7f1a7eec
+.word 0x40c90fdb
+glabel var7f1a7ef0
+.word 0x40c90fdb
+glabel var7f1a7ef4
+.word 0x40c90fdb
+glabel var7f1a7ef8
+.word 0x40c90fdb
+glabel var7f1a7efc
+.word 0x40c90fdb
+glabel var7f1a7f00
+.word 0x40c90fdb
+glabel var7f1a7f04
+.word 0x40c90fdb
+glabel var7f1a7f08
+.word 0x40c90fdb
+glabel var7f1a7f0c
+.word 0x40c90fdb
+glabel var7f1a7f10
+.word 0x40c90fdb
+glabel var7f1a7f14
+.word 0x40c90fdb
+glabel var7f1a7f18
+.word 0x40c90fdb
+.text
 /*  f008558:	27bdff58 */ 	addiu	$sp,$sp,-168
 /*  f00855c:	afb10044 */ 	sw	$s1,0x44($sp)
 /*  f008560:	3c0f8006 */ 	lui	$t7,%hi(var80061694)
@@ -2977,6 +2990,10 @@ glabel func0f009504
 
 GLOBAL_ASM(
 glabel func0f009818
+.late_rodata
+glabel var7f1a7f1c
+.word 0x40c90fdb
+.text
 /*  f009818:	27bdfef0 */ 	addiu	$sp,$sp,-272
 /*  f00981c:	afbf001c */ 	sw	$ra,0x1c($sp)
 /*  f009820:	afb00018 */ 	sw	$s0,0x18($sp)
@@ -3082,18 +3099,22 @@ void func0f0099a4(void)
 {
 	s32 i;
 
-	var80061640 = 0;
-	var800616e4 = 0;
+	g_GasActive = false;
+	g_GasAudioHandle = NULL;
 
-	for (i = 0; i < ARRAYCOUNT(var8009cb08); i++) {
-		var8009cb08[i].unk0c = -1;
-		var8009cb08[i].unk20 = 0;
-		var8009cb08[i].unk24 = 0;
+	for (i = 0; i < ARRAYCOUNT(g_GasParts); i++) {
+		g_GasParts[i].unk0c = -1;
+		g_GasParts[i].audiohandle20 = 0;
+		g_GasParts[i].audiohandle24 = 0;
 	}
 }
 
 GLOBAL_ASM(
 glabel func0f0099e4
+.late_rodata
+glabel var7f1a7f20
+.word 0x3c23d70a
+.text
 /*  f0099e4:	27bdfcf8 */ 	addiu	$sp,$sp,-776
 /*  f0099e8:	afb50030 */ 	sw	$s5,0x30($sp)
 /*  f0099ec:	3c15800a */ 	lui	$s5,%hi(g_Vars)
@@ -3311,6 +3332,14 @@ glabel func0f0099e4
 
 GLOBAL_ASM(
 glabel func0f009d10
+.late_rodata
+glabel var7f1a7f24
+.word 0x3d565b7b
+glabel var7f1a7f28
+.word 0x3d4ccccd
+glabel var7f1a7f2c
+.word 0x3d565b7b
+.text
 /*  f009d10:	27bdffd8 */ 	addiu	$sp,$sp,-40
 /*  f009d14:	afbf001c */ 	sw	$ra,0x1c($sp)
 /*  f009d18:	afb00018 */ 	sw	$s0,0x18($sp)
@@ -3423,199 +3452,77 @@ glabel func0f009d10
 /*  f009ea8:	00000000 */ 	nop
 );
 
-GLOBAL_ASM(
-glabel func0f009eac
-/*  f009eac:	3c0e800a */ 	lui	$t6,%hi(g_Vars+0x34)
-/*  f009eb0:	8dce9ff4 */ 	lw	$t6,%lo(g_Vars+0x34)($t6)
-/*  f009eb4:	27bdffc0 */ 	addiu	$sp,$sp,-64
-/*  f009eb8:	afbf002c */ 	sw	$ra,0x2c($sp)
-/*  f009ebc:	afb00028 */ 	sw	$s0,0x28($sp)
-/*  f009ec0:	11c00003 */ 	beqz	$t6,.L0f009ed0
-/*  f009ec4:	24084e20 */ 	addiu	$t0,$zero,0x4e20
-/*  f009ec8:	3c018006 */ 	lui	$at,%hi(var80061640)
-/*  f009ecc:	ac201640 */ 	sw	$zero,%lo(var80061640)($at)
-.L0f009ed0:
-/*  f009ed0:	00001825 */ 	or	$v1,$zero,$zero
-.L0f009ed4:
-/*  f009ed4:	3c0f800a */ 	lui	$t7,%hi(g_Vars+0x34)
-/*  f009ed8:	8def9ff4 */ 	lw	$t7,%lo(g_Vars+0x34)($t7)
-/*  f009edc:	0003c080 */ 	sll	$t8,$v1,0x2
-/*  f009ee0:	0303c021 */ 	addu	$t8,$t8,$v1
-/*  f009ee4:	11e00015 */ 	beqz	$t7,.L0f009f3c
-/*  f009ee8:	0018c0c0 */ 	sll	$t8,$t8,0x3
-/*  f009eec:	3c19800a */ 	lui	$t9,%hi(var8009cb08)
-/*  f009ef0:	2739cb08 */ 	addiu	$t9,$t9,%lo(var8009cb08)
-/*  f009ef4:	03198021 */ 	addu	$s0,$t8,$t9
-/*  f009ef8:	8e09000c */ 	lw	$t1,0xc($s0)
-/*  f009efc:	02002025 */ 	or	$a0,$s0,$zero
-/*  f009f00:	0522000f */ 	bltzl	$t1,.L0f009f40
-/*  f009f04:	24630001 */ 	addiu	$v1,$v1,0x1
-/*  f009f08:	afa3003c */ 	sw	$v1,0x3c($sp)
-/*  f009f0c:	0fc02744 */ 	jal	func0f009d10
-/*  f009f10:	afa80038 */ 	sw	$t0,0x38($sp)
-/*  f009f14:	8fa80038 */ 	lw	$t0,0x38($sp)
-/*  f009f18:	8e02000c */ 	lw	$v0,0xc($s0)
-/*  f009f1c:	8fa3003c */ 	lw	$v1,0x3c($sp)
-/*  f009f20:	240a0001 */ 	addiu	$t2,$zero,0x1
-/*  f009f24:	0048082a */ 	slt	$at,$v0,$t0
-/*  f009f28:	10200002 */ 	beqz	$at,.L0f009f34
-/*  f009f2c:	00000000 */ 	nop
-/*  f009f30:	00404025 */ 	or	$t0,$v0,$zero
-.L0f009f34:
-/*  f009f34:	3c018006 */ 	lui	$at,%hi(var80061640)
-/*  f009f38:	ac2a1640 */ 	sw	$t2,%lo(var80061640)($at)
-.L0f009f3c:
-/*  f009f3c:	24630001 */ 	addiu	$v1,$v1,0x1
-.L0f009f40:
-/*  f009f40:	28610006 */ 	slti	$at,$v1,0x6
-/*  f009f44:	1420ffe3 */ 	bnez	$at,.L0f009ed4
-/*  f009f48:	00000000 */ 	nop
-/*  f009f4c:	2901015e */ 	slti	$at,$t0,0x15e
-/*  f009f50:	10200057 */ 	beqz	$at,.L0f00a0b0
-/*  f009f54:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f009f58:	3c0b800a */ 	lui	$t3,%hi(g_Vars+0x34)
-/*  f009f5c:	8d6b9ff4 */ 	lw	$t3,%lo(g_Vars+0x34)($t3)
-/*  f009f60:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f009f64:	11600047 */ 	beqz	$t3,.L0f00a084
-/*  f009f68:	00000000 */ 	nop
-/*  f009f6c:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f009f70:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f009f74:	3c068006 */ 	lui	$a2,%hi(var800616e4)
-/*  f009f78:	24c616e4 */ 	addiu	$a2,$a2,%lo(var800616e4)
-/*  f009f7c:	14800012 */ 	bnez	$a0,.L0f009fc8
-/*  f009f80:	2405810c */ 	addiu	$a1,$zero,-32500
-/*  f009f84:	3c01bf80 */ 	lui	$at,0xbf80
-/*  f009f88:	44812000 */ 	mtc1	$at,$f4
-/*  f009f8c:	3c048009 */ 	lui	$a0,%hi(var80095200)
-/*  f009f90:	240cffff */ 	addiu	$t4,$zero,-1
-/*  f009f94:	240dffff */ 	addiu	$t5,$zero,-1
-/*  f009f98:	240effff */ 	addiu	$t6,$zero,-1
-/*  f009f9c:	afae001c */ 	sw	$t6,0x1c($sp)
-/*  f009fa0:	afad0018 */ 	sw	$t5,0x18($sp)
-/*  f009fa4:	afac0010 */ 	sw	$t4,0x10($sp)
-/*  f009fa8:	8c845200 */ 	lw	$a0,%lo(var80095200)($a0)
-/*  f009fac:	2407ffff */ 	addiu	$a3,$zero,-1
-/*  f009fb0:	afa80038 */ 	sw	$t0,0x38($sp)
-/*  f009fb4:	0c004241 */ 	jal	audioStart
-/*  f009fb8:	e7a40014 */ 	swc1	$f4,0x14($sp)
-/*  f009fbc:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f009fc0:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f009fc4:	8fa80038 */ 	lw	$t0,0x38($sp)
-.L0f009fc8:
-/*  f009fc8:	10800042 */ 	beqz	$a0,.L0f00a0d4
-/*  f009fcc:	24107fff */ 	addiu	$s0,$zero,0x7fff
-/*  f009fd0:	3c0141a0 */ 	lui	$at,0x41a0
-/*  f009fd4:	44816000 */ 	mtc1	$at,$f12
-/*  f009fd8:	0fc01ac2 */ 	jal	func0f006b08
-/*  f009fdc:	afa80038 */ 	sw	$t0,0x38($sp)
-/*  f009fe0:	3c017f1a */ 	lui	$at,%hi(var7f1a7f30)
-/*  f009fe4:	c4267f30 */ 	lwc1	$f6,%lo(var7f1a7f30)($at)
-/*  f009fe8:	3c017f1a */ 	lui	$at,%hi(var7f1a7f34)
-/*  f009fec:	c42a7f34 */ 	lwc1	$f10,%lo(var7f1a7f34)($at)
-/*  f009ff0:	46060202 */ 	mul.s	$f8,$f0,$f6
-/*  f009ff4:	8fa80038 */ 	lw	$t0,0x38($sp)
-/*  f009ff8:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f009ffc:	24050008 */ 	addiu	$a1,$zero,0x8
-/*  f00a000:	2901012d */ 	slti	$at,$t0,0x12d
-/*  f00a004:	250ffed4 */ 	addiu	$t7,$t0,-300
-/*  f00a008:	460a4400 */ 	add.s	$f16,$f8,$f10
-/*  f00a00c:	1420000f */ 	bnez	$at,.L0f00a04c
-/*  f00a010:	e7b00030 */ 	swc1	$f16,0x30($sp)
-/*  f00a014:	448f9000 */ 	mtc1	$t7,$f18
-/*  f00a018:	3c014248 */ 	lui	$at,0x4248
-/*  f00a01c:	44813000 */ 	mtc1	$at,$f6
-/*  f00a020:	46809120 */ 	cvt.s.w	$f4,$f18
-/*  f00a024:	3c013f80 */ 	lui	$at,0x3f80
-/*  f00a028:	44815000 */ 	mtc1	$at,$f10
-/*  f00a02c:	3c017f1a */ 	lui	$at,%hi(var7f1a7f38)
-/*  f00a030:	c4327f38 */ 	lwc1	$f18,%lo(var7f1a7f38)($at)
-/*  f00a034:	46062203 */ 	div.s	$f8,$f4,$f6
-/*  f00a038:	46085401 */ 	sub.s	$f16,$f10,$f8
-/*  f00a03c:	46128102 */ 	mul.s	$f4,$f16,$f18
-/*  f00a040:	4600218d */ 	trunc.w.s	$f6,$f4
-/*  f00a044:	44103000 */ 	mfc1	$s0,$f6
-/*  f00a048:	00000000 */ 	nop
-.L0f00a04c:
-/*  f00a04c:	2901015e */ 	slti	$at,$t0,0x15e
-/*  f00a050:	14200002 */ 	bnez	$at,.L0f00a05c
-/*  f00a054:	00000000 */ 	nop
-/*  f00a058:	00008025 */ 	or	$s0,$zero,$zero
-.L0f00a05c:
-/*  f00a05c:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f00a060:	0c00cf94 */ 	jal	func00033e50
-/*  f00a064:	02003025 */ 	or	$a2,$s0,$zero
-/*  f00a068:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f00a06c:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f00a070:	24050010 */ 	addiu	$a1,$zero,0x10
-/*  f00a074:	0c00cf94 */ 	jal	func00033e50
-/*  f00a078:	8fa60030 */ 	lw	$a2,0x30($sp)
-/*  f00a07c:	10000015 */ 	b	.L0f00a0d4
-/*  f00a080:	00000000 */ 	nop
-.L0f00a084:
-/*  f00a084:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f00a088:	10800012 */ 	beqz	$a0,.L0f00a0d4
-/*  f00a08c:	00000000 */ 	nop
-/*  f00a090:	0c00cdfc */ 	jal	audioIsPlaying
-/*  f00a094:	00000000 */ 	nop
-/*  f00a098:	1040000e */ 	beqz	$v0,.L0f00a0d4
-/*  f00a09c:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f00a0a0:	0c00cec9 */ 	jal	audioStop
-/*  f00a0a4:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f00a0a8:	1000000a */ 	b	.L0f00a0d4
-/*  f00a0ac:	00000000 */ 	nop
-.L0f00a0b0:
-/*  f00a0b0:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-/*  f00a0b4:	10800007 */ 	beqz	$a0,.L0f00a0d4
-/*  f00a0b8:	00000000 */ 	nop
-/*  f00a0bc:	0c00cdfc */ 	jal	audioIsPlaying
-/*  f00a0c0:	00000000 */ 	nop
-/*  f00a0c4:	10400003 */ 	beqz	$v0,.L0f00a0d4
-/*  f00a0c8:	3c048006 */ 	lui	$a0,%hi(var800616e4)
-/*  f00a0cc:	0c00cec9 */ 	jal	audioStop
-/*  f00a0d0:	8c8416e4 */ 	lw	$a0,%lo(var800616e4)($a0)
-.L0f00a0d4:
-/*  f00a0d4:	3c19800a */ 	lui	$t9,%hi(g_Vars+0x34)
-/*  f00a0d8:	8f399ff4 */ 	lw	$t9,%lo(g_Vars+0x34)($t9)
-/*  f00a0dc:	3c10800a */ 	lui	$s0,%hi(var8009cb08)
-/*  f00a0e0:	2610cb08 */ 	addiu	$s0,$s0,%lo(var8009cb08)
-/*  f00a0e4:	5720001c */ 	bnezl	$t9,.L0f00a158
-/*  f00a0e8:	8fbf002c */ 	lw	$ra,0x2c($sp)
-/*  f00a0ec:	8e09000c */ 	lw	$t1,0xc($s0)
-.L0f00a0f0:
-/*  f00a0f0:	05200013 */ 	bltz	$t1,.L0f00a140
-/*  f00a0f4:	00000000 */ 	nop
-/*  f00a0f8:	8e040020 */ 	lw	$a0,0x20($s0)
-/*  f00a0fc:	50800008 */ 	beqzl	$a0,.L0f00a120
-/*  f00a100:	8e040024 */ 	lw	$a0,0x24($s0)
-/*  f00a104:	0c00cdfc */ 	jal	audioIsPlaying
-/*  f00a108:	00000000 */ 	nop
-/*  f00a10c:	50400004 */ 	beqzl	$v0,.L0f00a120
-/*  f00a110:	8e040024 */ 	lw	$a0,0x24($s0)
-/*  f00a114:	0c00cec9 */ 	jal	audioStop
-/*  f00a118:	8e040020 */ 	lw	$a0,0x20($s0)
-/*  f00a11c:	8e040024 */ 	lw	$a0,0x24($s0)
-.L0f00a120:
-/*  f00a120:	10800007 */ 	beqz	$a0,.L0f00a140
-/*  f00a124:	00000000 */ 	nop
-/*  f00a128:	0c00cdfc */ 	jal	audioIsPlaying
-/*  f00a12c:	00000000 */ 	nop
-/*  f00a130:	10400003 */ 	beqz	$v0,.L0f00a140
-/*  f00a134:	00000000 */ 	nop
-/*  f00a138:	0c00cec9 */ 	jal	audioStop
-/*  f00a13c:	8e040024 */ 	lw	$a0,0x24($s0)
-.L0f00a140:
-/*  f00a140:	3c0a800a */ 	lui	$t2,%hi(var8009cbf8)
-/*  f00a144:	254acbf8 */ 	addiu	$t2,$t2,%lo(var8009cbf8)
-/*  f00a148:	26100028 */ 	addiu	$s0,$s0,0x28
-/*  f00a14c:	560affe8 */ 	bnel	$s0,$t2,.L0f00a0f0
-/*  f00a150:	8e09000c */ 	lw	$t1,0xc($s0)
-/*  f00a154:	8fbf002c */ 	lw	$ra,0x2c($sp)
-.L0f00a158:
-/*  f00a158:	8fb00028 */ 	lw	$s0,0x28($sp)
-/*  f00a15c:	27bd0040 */ 	addiu	$sp,$sp,0x40
-/*  f00a160:	03e00008 */ 	jr	$ra
-/*  f00a164:	00000000 */ 	nop
-);
+void gasTick(void)
+{
+	s32 i;
+	s32 smallest = 20000;
+	s32 somevalue;
+
+	if (g_Vars.lvupdate240 != 0) {
+		g_GasActive = false;
+	}
+
+	for (i = 0; i < 6; i++) {
+		if (g_Vars.lvupdate240 != 0 && g_GasParts[i].unk0c >= 0) {
+			func0f009d10(&g_GasParts[i]);
+
+			if (g_GasParts[i].unk0c < smallest) {
+				smallest = g_GasParts[i].unk0c;
+			}
+
+			g_GasActive = true;
+		}
+	}
+
+	somevalue = 0;
+
+	if (smallest < 350) {
+		if (g_Vars.lvupdate240 != 0) {
+			if (g_GasAudioHandle == 0) {
+				audioStart(var80095200, 0x810c, &g_GasAudioHandle, -1, -1, -1, -1, -1);
+			}
+
+			somevalue = 32767;
+
+			if (g_GasAudioHandle) {
+				f32 speed = func0f006b08(20) * 0.02f + 0.4f;
+
+				if (smallest > 300) {
+					somevalue = (1.0f - (f32)(smallest - 300) / 50.0f) * 32767.0f;
+				}
+
+				if (smallest >= 350) {
+					somevalue = 0;
+				}
+
+				func00033e50(g_GasAudioHandle, 8, somevalue);
+				func00033e50(g_GasAudioHandle, 16, *(s32 *)&speed);
+			}
+		} else {
+			if (g_GasAudioHandle && audioIsPlaying(g_GasAudioHandle)) {
+				audioStop(g_GasAudioHandle);
+			}
+		}
+	} else {
+		if (g_GasAudioHandle && audioIsPlaying(g_GasAudioHandle)) {
+			audioStop(g_GasAudioHandle);
+		}
+	}
+
+	if (g_Vars.lvupdate240 == 0) {
+		for (i = 0; i < 6; i++) {
+			if (g_GasParts[i].unk0c >= 0) {
+				if (g_GasParts[i].audiohandle20 && audioIsPlaying(g_GasParts[i].audiohandle20)) {
+					audioStop(g_GasParts[i].audiohandle20);
+				}
+
+				if (g_GasParts[i].audiohandle24 && audioIsPlaying(g_GasParts[i].audiohandle24)) {
+					audioStop(g_GasParts[i].audiohandle24);
+				}
+			}
+		}
+	}
+}
 
 Gfx *func0f00a168(Gfx *gdl)
 {
@@ -3623,12 +3530,12 @@ Gfx *func0f00a168(Gfx *gdl)
 	s32 value = 0;
 
 	for (i = 0; i < 6; i++) {
-		if (var8009cb08[i].unk0c >= 0) {
+		if (g_GasParts[i].unk0c >= 0) {
 			if (!value) {
 				value = func0f009504();
 			}
 
-			gdl = func0f009818(gdl, &var8009cb08[i], value);
+			gdl = func0f009818(gdl, &g_GasParts[i], value);
 		}
 	}
 
@@ -3637,18 +3544,24 @@ Gfx *func0f00a168(Gfx *gdl)
 
 GLOBAL_ASM(
 glabel func0f00a1f8
+.late_rodata
+glabel var7f1a7f3c
+.word 0x3ecccccd
+glabel var7f1a7f40
+.word 0x3ecccccd
+.text
 /*  f00a1f8:	27bdffb8 */ 	addiu	$sp,$sp,-72
 /*  f00a1fc:	afa40048 */ 	sw	$a0,0x48($sp)
 /*  f00a200:	afa5004c */ 	sw	$a1,0x4c($sp)
 /*  f00a204:	240e0001 */ 	addiu	$t6,$zero,0x1
-/*  f00a208:	3c018006 */ 	lui	$at,%hi(var80061640)
-/*  f00a20c:	3c03800a */ 	lui	$v1,%hi(var8009cb08)
+/*  f00a208:	3c018006 */ 	lui	$at,%hi(g_GasActive)
+/*  f00a20c:	3c03800a */ 	lui	$v1,%hi(g_GasParts)
 /*  f00a210:	afbf002c */ 	sw	$ra,0x2c($sp)
 /*  f00a214:	afb00028 */ 	sw	$s0,0x28($sp)
 /*  f00a218:	2407ffff */ 	addiu	$a3,$zero,-1
 /*  f00a21c:	00004025 */ 	or	$t0,$zero,$zero
-/*  f00a220:	ac2e1640 */ 	sw	$t6,%lo(var80061640)($at)
-/*  f00a224:	2463cb08 */ 	addiu	$v1,$v1,%lo(var8009cb08)
+/*  f00a220:	ac2e1640 */ 	sw	$t6,%lo(g_GasActive)($at)
+/*  f00a224:	2463cb08 */ 	addiu	$v1,$v1,%lo(g_GasParts)
 /*  f00a228:	24050006 */ 	addiu	$a1,$zero,0x6
 /*  f00a22c:	2404ffff */ 	addiu	$a0,$zero,-1
 /*  f00a230:	00003025 */ 	or	$a2,$zero,$zero
@@ -3676,8 +3589,8 @@ glabel func0f00a1f8
 .L0f00a27c:
 /*  f00a27c:	0008c880 */ 	sll	$t9,$t0,0x2
 /*  f00a280:	0328c821 */ 	addu	$t9,$t9,$t0
-/*  f00a284:	3c09800a */ 	lui	$t1,%hi(var8009cb08)
-/*  f00a288:	2529cb08 */ 	addiu	$t1,$t1,%lo(var8009cb08)
+/*  f00a284:	3c09800a */ 	lui	$t1,%hi(g_GasParts)
+/*  f00a288:	2529cb08 */ 	addiu	$t1,$t1,%lo(g_GasParts)
 /*  f00a28c:	0019c8c0 */ 	sll	$t9,$t9,0x3
 /*  f00a290:	03298021 */ 	addu	$s0,$t9,$t1
 /*  f00a294:	0fc0252d */ 	jal	func0f0094b4
@@ -3804,7 +3717,7 @@ glabel func0f00a490
 /*  f00a4b0:	afa40080 */ 	sw	$a0,0x80($sp)
 /*  f00a4b4:	afa00050 */ 	sw	$zero,0x50($sp)
 /*  f00a4b8:	c4441bb0 */ 	lwc1	$f4,0x1bb0($v0)
-/*  f00a4bc:	3c10800a */ 	lui	$s0,%hi(var8009cb08)
+/*  f00a4bc:	3c10800a */ 	lui	$s0,%hi(g_GasParts)
 /*  f00a4c0:	3c11800a */ 	lui	$s1,%hi(var8009cbf8)
 /*  f00a4c4:	e7a40070 */ 	swc1	$f4,0x70($sp)
 /*  f00a4c8:	c4461bb4 */ 	lwc1	$f6,0x1bb4($v0)
@@ -3813,7 +3726,7 @@ glabel func0f00a490
 /*  f00a4d4:	e7a60074 */ 	swc1	$f6,0x74($sp)
 /*  f00a4d8:	c4481bb8 */ 	lwc1	$f8,0x1bb8($v0)
 /*  f00a4dc:	2631cbf8 */ 	addiu	$s1,$s1,%lo(var8009cbf8)
-/*  f00a4e0:	2610cb08 */ 	addiu	$s0,$s0,%lo(var8009cb08)
+/*  f00a4e0:	2610cb08 */ 	addiu	$s0,$s0,%lo(g_GasParts)
 /*  f00a4e4:	e7a80078 */ 	swc1	$f8,0x78($sp)
 /*  f00a4e8:	8e02000c */ 	lw	$v0,0xc($s0)
 .L0f00a4ec:
@@ -4104,6 +4017,22 @@ glabel func0f00a490
 
 GLOBAL_ASM(
 glabel hudRenderGasIfEnabled
+.late_rodata
+glabel var7f1a7f44
+.word 0xc6557000
+glabel var7f1a7f48
+.word 0xc4b82000
+glabel var7f1a7f4c
+.word 0x3e4ccccd
+glabel var7f1a7f50
+.word 0x40c907a9
+glabel var7f1a7f54
+.word 0x453b8000
+glabel var7f1a7f58
+.word 0x00000000
+glabel var7f1a7f5c
+.word 0x00000000
+.text
 /*  f00a940:	27bdfef0 */ 	addiu	$sp,$sp,-272
 /*  f00a944:	3c013f80 */ 	lui	$at,0x3f80
 /*  f00a948:	44810000 */ 	mtc1	$at,$f0
diff --git a/src/game/game_0b69d0.c b/src/game/game_0b69d0.c
index 34e8e99b5..89f6103f0 100644
--- a/src/game/game_0b69d0.c
+++ b/src/game/game_0b69d0.c
@@ -9396,7 +9396,7 @@ Gfx *func0f0c07c8(Gfx *gdl)
 			gdl = func0f15b114(gdl);
 		}
 
-		if (var80061640 != 0) {
+		if (g_GasActive != 0) {
 			gdl = func0f00a490(gdl);
 		}
 
diff --git a/src/game/game_0f09f0.c b/src/game/game_0f09f0.c
index e17edb965..2a4af57ec 100644
--- a/src/game/game_0f09f0.c
+++ b/src/game/game_0f09f0.c
@@ -131,14 +131,14 @@ void menuPlaySound(s32 menusound)
 	}
 
 	if (sound != -1) {
-		s32 handle;
+		struct audiohandle *handle;
 		OSPri prevpri = osGetThreadPri(NULL);
 		osSetThreadPri(0, osGetThreadPri(&g_AudioManager.thread) + 1);
 
 		handle = audioStart(var80095200, sound, NULL, -1, -1, -1, -1, -1);
 
 		if (handle && flag1) {
-			func00033e50(handle, 16, *(u32 *)&speed);
+			func00033e50(handle, 16, *(s32 *)&speed);
 		}
 
 		if (handle && flag2) {
diff --git a/src/game/weather/init.c b/src/game/weather/init.c
index 7d3961c09..5b7460a04 100644
--- a/src/game/weather/init.c
+++ b/src/game/weather/init.c
@@ -12,7 +12,7 @@
 #include "lib/memory.h"
 #include "types.h"
 
-s32 g_WeatherEnabled = false;
+s32 g_WeatherActive = false;
 u32 var800623f4 = 0x00000000;
 u32 var800623f8 = 0x00000000;
 u32 var800623fc = 0x00000000;
@@ -59,7 +59,7 @@ u32 var8006249c = 0x00000000;
 
 void weatherInit(void)
 {
-	g_WeatherEnabled = false;
+	g_WeatherActive = false;
 	g_WeatherData = NULL;
 
 	if ((g_StageIndex == STAGEINDEX_CHICAGO
@@ -117,6 +117,6 @@ void weatherInit(void)
 		g_WeatherData->unkd0 = 0;
 		g_WeatherData->unkd4 = 0;
 
-		g_WeatherEnabled = true;
+		g_WeatherActive = true;
 	}
 }
diff --git a/src/gvars/gvars.c b/src/gvars/gvars.c
index 9ddd4eb4d..9e2299026 100644
--- a/src/gvars/gvars.c
+++ b/src/gvars/gvars.c
@@ -14238,7 +14238,7 @@ u32 var8009caf8 = 0;
 u32 var8009cafc = 0;
 u32 var8009cb00 = 0;
 u32 var8009cb04 = 0;
-struct var8009cb08 var8009cb08[6] = {0};
+struct gaspart g_GasParts[6] = {0};
 u32 var8009cbf8 = 0;
 u32 var8009cbfc = 0;
 struct prop *g_DangerousProps[MAX_DANGEROUSPROPS] = {NULL};
diff --git a/src/include/game/data/data_000000.h b/src/include/game/data/data_000000.h
index 701c87ef1..50f2e452a 100644
--- a/src/include/game/data/data_000000.h
+++ b/src/include/game/data/data_000000.h
@@ -222,13 +222,13 @@ extern s32 g_FootstepSounds[];
 extern u16 var800615a0[][2];
 extern f32 var80061630;
 extern u32 var80061634;
-extern s32 var80061640;
+extern bool g_GasActive;
 extern u32 var80061644;
 extern u32 var80061648;
 extern u32 var8006164c;
 extern u32 var80061694;
 extern u32 var800616dc;
-extern u32 var800616e4;
+extern struct audiohandle *g_GasAudioHandle;
 extern u32 var800616e8;
 extern struct stageheadlimit g_StageHeadLimits[3];
 extern u32 var80061710;
diff --git a/src/include/game/data/data_0083d0.h b/src/include/game/data/data_0083d0.h
index 250f3d4a6..9aaa5dcfb 100644
--- a/src/include/game/data/data_0083d0.h
+++ b/src/include/game/data/data_0083d0.h
@@ -4,7 +4,7 @@
 #include "types.h"
 
 extern u32 var800623b0;
-extern s32 g_WeatherEnabled;
+extern s32 g_WeatherActive;
 extern u32 var80062400;
 extern u32 var80062410;
 extern u32 var80062414;
diff --git a/src/include/game/game_006bd0.h b/src/include/game/game_006bd0.h
index 7b86a2c95..a6ea30f08 100644
--- a/src/include/game/game_006bd0.h
+++ b/src/include/game/game_006bd0.h
@@ -9,11 +9,11 @@ u32 func0f008558(void);
 u32 func0f0094b4(void);
 u32 func0f0094bc(void);
 s32 func0f009504(void);
-Gfx *func0f009818(Gfx *gdl, struct var8009cb08 *arg1, s32 arg2);
+Gfx *func0f009818(Gfx *gdl, struct gaspart *arg1, s32 arg2);
 void func0f0099a4(void);
 u32 func0f0099e4(void);
-u32 func0f009d10(void);
-void func0f009eac(void);
+void func0f009d10(struct gaspart *part);
+void gasTick(void);
 Gfx *func0f00a168(Gfx *gdl);
 u32 func0f00a1f8(void);
 f32 doorGetFrac(s32 tagnum);
diff --git a/src/include/gvars/gvars.h b/src/include/gvars/gvars.h
index 5baa2e183..945bdfd08 100644
--- a/src/include/gvars/gvars.h
+++ b/src/include/gvars/gvars.h
@@ -494,7 +494,7 @@ extern u32 var8009cadc;
 extern u32 var8009cae0;
 extern u8 var8009caec[4];
 extern u8 var8009caf0;
-extern struct var8009cb08 var8009cb08[6];
+extern struct gaspart g_GasParts[6];
 extern u32 var8009cbf8;
 extern struct prop *g_DangerousProps[MAX_DANGEROUSPROPS];
 extern s32 var8009cc30;
diff --git a/src/include/lib/lib_0e9d0.h b/src/include/lib/lib_0e9d0.h
index 861d2c4f5..fc7a56feb 100644
--- a/src/include/lib/lib_0e9d0.h
+++ b/src/include/lib/lib_0e9d0.h
@@ -33,7 +33,7 @@ u32 func00010360(void);
 u32 func0001036c(void);
 void audioAdjust(struct audiohandle **handle, u32 arg1, u32 arg2, s32 speakerweight, s16 arg4, f32 arg5, s32 arg6, s32 arg7, s32 arg8);
 struct audiohandle *func00010718(struct audiohandle **handle, s32 arg1, s32 arg2, s32 arg3, s32 arg4, f32 arg5, s32 arg6, s32 arg7, s32 arg8);
-s32 audioStart(s32 arg0, s16 sound, struct audiohandle **handle, s32 arg3, s32 arg4, f32 arg5, s32 arg6, s32 arg7);
+struct audiohandle *audioStart(s32 arg0, s16 sound, struct audiohandle **handle, s32 arg3, s32 arg4, f32 arg5, s32 arg6, s32 arg7);
 u32 func00010ae4(void);
 void envPlayNosedive(s32 room_id);
 void envStopNosedive(void);
diff --git a/src/include/lib/lib_317f0.h b/src/include/lib/lib_317f0.h
index a5d1e4f28..4d6fd7bb6 100644
--- a/src/include/lib/lib_317f0.h
+++ b/src/include/lib/lib_317f0.h
@@ -21,7 +21,7 @@ u32 func00033c30(void);
 u32 func00033cf0(void);
 u32 func00033db0(void);
 u32 func00033dd8(void);
-void func00033e50(s32 arg0, s32 arg1, u32 arg2);
+void func00033e50(struct audiohandle *handle, s32 arg1, s32 arg2);
 u32 func00033ec4(void);
 u32 func00033f08(void);
 u32 func00033f24(void);
diff --git a/src/include/types.h b/src/include/types.h
index 1b2f89e76..3370ea23e 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -6835,7 +6835,7 @@ struct var8006996c {
 	/*0x28*/ u32 unk28;
 };
 
-struct var8009cb08 {
+struct gaspart {
 	u32 unk00;
 	u32 unk04;
 	u32 unk08;
@@ -6844,8 +6844,8 @@ struct var8009cb08 {
 	u32 unk14;
 	u32 unk18;
 	u32 unk1c;
-	u32 unk20;
-	u32 unk24;
+	struct audiohandle *audiohandle20;
+	struct audiohandle *audiohandle24;
 };
 
 struct roomacousticdata {