diff --git a/src/game/bg.c b/src/game/bg.c
index def8fee21..8b55c2e74 100644
--- a/src/game/bg.c
+++ b/src/game/bg.c
@@ -148,6 +148,8 @@ void bg_calculate_screen_properties(void);
 void bg_expand_room_to_portals(s32 roomnum);
 void bg_init_portal(s32 portalnum);
 void bg_init_room(s32 roomnum);
+s32 bg_find_portal_by_vertices(struct portalvertices *target);
+bool bg_3d_pos_to_2d_pos(struct coord *cornerpos, struct coord *screenpos);
 
 void bg_unpause_props_in_room(u32 roomnum, bool tintedglassonly)
 {
diff --git a/src/game/bondgun.c b/src/game/bondgun.c
index 16fde5c62..d6e34cb9a 100644
--- a/src/game/bondgun.c
+++ b/src/game/bondgun.c
@@ -194,6 +194,12 @@ void bgun_auto_switch_weapon(void);
 void bgun_start_slide(s32 handnum);
 void bgun_set_aim_pos(struct coord *coord);
 void bgun0f0abd30(s32 handnum);
+bool bgun_is_using_secondary_function(void);
+bool bgun_is_ready_to_switch(s32 handnum);
+bool bgun_set_state(s32 handnum, s32 state);
+bool bgun_is_loaded(void);
+s32 bgun_create_model_cmd_list(struct model *model, struct modelnode *nodearg, s32 *ptr);
+bool bgun_ammotype_allows_unlimited_ammo(u32 ammotype);
 
 void bgun_rumble(s32 handnum, s32 weaponnum)
 {
diff --git a/src/game/bot.c b/src/game/bot.c
index a8b1733a7..1f873009c 100644
--- a/src/game/bot.c
+++ b/src/game/bot.c
@@ -96,6 +96,10 @@ struct botdifficulty g_BotDifficulties[] = {
 	{ 0 },
 };
 
+s32 bot_get_num_teammates_defending_hill(struct chrdata *bot);
+s32 bot_get_num_opponents_in_hill(struct chrdata *chr);
+bool bot_should_return_ctc_token(struct chrdata *chr);
+
 bool bot_is_dizzy(struct chrdata *chr)
 {
 	return chr->blurdrugamount >= g_BotDifficulties[chr->aibot->config->difficulty].dizzyamount;
diff --git a/src/game/camdraw.c b/src/game/camdraw.c
index ebe342454..f25dda71a 100644
--- a/src/game/camdraw.c
+++ b/src/game/camdraw.c
@@ -377,8 +377,10 @@ void func0f14e7e0(u8 *arg0);
 void func0f14e884(struct textureconfig *tconfig, s32 numrows, s32 arg2, u64 arg3);
 void func0f14ecd8(s32 *arg0, s32 *arg1, s32 *arg2, s32 *arg3);
 void func0f14eeb0(f32 arg0[7]);
-void phead_get_unk3d0(f32 *arg0);
+void phead_get_unk3d0(f32 arg0[7]);
 void editor_make_texture_type5(struct perfecthead *arg0);
+s32 camdraw_get_editor_index(void);
+s32 editor_get_num_valid_images(s32 index);
 
 /**
  * Fill the texture buffer with a linear gradient: black (left) to white (right).
diff --git a/src/game/filemgr.c b/src/game/filemgr.c
index d9e7abdb9..9a4ec2b58 100644
--- a/src/game/filemgr.c
+++ b/src/game/filemgr.c
@@ -63,6 +63,7 @@ struct menudialogdef g_FilemgrRenameMenuDialog;
 
 void filemgr_retry_save(s32 context);
 void filemgr_push_delete_file_dialog(s32 listnum);
+bool filemgr_attempt_operation(s32 device, bool closeonsuccess);
 
 #if PAL
 MenuItemHandlerResult filemgr_handle_set_language(s32 operation, struct menuitem *item, union handlerdata *data)
diff --git a/src/game/mplayer/mplayer.c b/src/game/mplayer/mplayer.c
index 89cda195b..43d9919f3 100644
--- a/src/game/mplayer/mplayer.c
+++ b/src/game/mplayer/mplayer.c
@@ -100,6 +100,8 @@ struct mpweapon g_MpWeapons[NUM_MPWEAPONS] = {
 };
 
 void mp_calculate_player_title(struct mpplayerconfig *mpplayer);
+s32 mp_choose_random_lock_player(void);
+s32 mp_get_chr_index_by_slot_num(s32 slot);
 
 /**
  * Converts the given value into a float on a curved scale from 0.1 to 10.
diff --git a/src/game/music.c b/src/game/music.c
index 3eae2b486..4155d65c5 100644
--- a/src/game/music.c
+++ b/src/game/music.c
@@ -83,6 +83,7 @@ const char var7f1b7918[] = "MUSIC : activedeath=%d\n";
 
 void music_save_interval(void);
 void music_restore_interval(void);
+bool music_is_any_player_in_ambient_room(void);
 
 u16 music_get_volume(void)
 {
diff --git a/src/game/propobj.c b/src/game/propobj.c
index d802d970f..551995992 100644
--- a/src/game/propobj.c
+++ b/src/game/propobj.c
@@ -152,6 +152,11 @@ void door_play_opened_sound(s32 soundtype, struct prop *prop);
 bool door_test_interact_angle(struct doorobj *door, bool altcoordsystem);
 void doors_calc_frac(struct doorobj *door);
 void gas_release_from_pos(struct coord *pos);
+s32 door_is_closed(struct doorobj *door);
+bool func0f0849dc(struct model *model, struct modelnode *nodearg, struct coord *arg2, struct coord *arg3, struct hitthing *hitthing, s32 *dstmtxindex, struct modelnode **dstnode);
+bool door_is_range_empty(struct doorobj *door);
+s32 door_is_open(struct doorobj *door);
+bool pos_is_in_front_of_door(struct coord *pos, struct doorobj *door);
 
 /**
  * Attempt to call a lift from the given door.
diff --git a/src/game/texdecompress.c b/src/game/texdecompress.c
index 173055be7..53d15c1c6 100644
--- a/src/game/texdecompress.c
+++ b/src/game/texdecompress.c
@@ -116,6 +116,16 @@ void tex_inflate_rle(u8 *dst, s32 blockstotal);
 void tex_read_alpha_bits(u8 *dst, s32 count);
 void tex_swizzle(u8 *dst, s32 width, s32 height, s32 format);
 void tex_blur(u8 *pixels, s32 width, s32 height, s32 method, s32 chansize);
+s32 tex_align_indices(u8 *src, s32 width, s32 height, s32 format, u8 *dst);
+s32 tex_shrink_paletted(u8 *src, u8 *dst, s32 srcwidth, s32 srcheight, s32 format, u16 *palette, s32 numcolours);
+s32 tex_find_closest_colour_index_r_g_b_a(u8 *palette, s32 numcolours, s32 r, s32 g, s32 b, s32 a);
+s32 tex_find_closest_colour_index_i_a(u16 *palette, s32 numcolours, s32 intensity, s32 alpha);
+s32 tex_read_uncompressed(u8 *dst, s32 width, s32 height, s32 format);
+s32 tex_channels_to_pixels(u8 *src, s32 width, s32 height, u8 *dst, s32 format);
+s32 tex_build_lookup(u8 *lookup, s32 bitsperpixel);
+s32 tex_inflate_lookup(s32 width, s32 height, u8 *dst, u8 *lookup, s32 numcolours, s32 format);
+s32 tex_shrink_non_paletted(u8 *src, u8 *dst, s32 srcwidth, s32 srcheight, s32 format);
+s32 tex_inflate_lookup_from_buffer(u8 *src, s32 width, s32 height, u8 *dst, u8 *lookup, s32 numcolours, s32 format);
 
 void func0f16e810(u32 arg0)
 {
diff --git a/src/lib/boot.c b/src/lib/boot.c
index eb61310c0..53bf5c9c5 100644
--- a/src/lib/boot.c
+++ b/src/lib/boot.c
@@ -259,9 +259,9 @@ void boot_create_sched_thread(void)
 	osCreateMesgQueue(&g_MainMesgQueue, g_MainMesgBuf, ARRAYCOUNT(g_MainMesgBuf));
 
 	if (osTvType == OS_TV_MPAL) {
-		os_create_scheduler(&g_Sched, &g_SchedThread, OS_VI_MPAL_LAN1, 1);
+		osCreateScheduler(&g_Sched, &g_SchedThread, OS_VI_MPAL_LAN1, 1);
 	} else {
-		os_create_scheduler(&g_Sched, &g_SchedThread, OS_VI_NTSC_LAN1, 1);
+		osCreateScheduler(&g_Sched, &g_SchedThread, OS_VI_NTSC_LAN1, 1);
 	}
 
 	osScAddClient(&g_Sched, &g_MainSchedClient, &g_MainMesgQueue, false);
diff --git a/src/lib/sched.c b/src/lib/sched.c
index a594d8a3b..a0f3d04c0 100644
--- a/src/lib/sched.c
+++ b/src/lib/sched.c
@@ -140,7 +140,7 @@ void sched_init_crash_last_rendered(void)
 	g_SchedCrashLastRendered = osGetCount();
 }
 
-void os_create_scheduler(OSSched *sc, OSThread *thread, u8 mode, u32 numFields)
+void osCreateScheduler(OSSched *sc, OSThread *thread, u8 mode, u32 numFields)
 {
 	sc->curRSPTask = 0;
 	sc->curRDPTask = 0;