diff --git a/src/game/chr/chraicommands.c b/src/game/chr/chraicommands.c
index 2b3ef33e7..1606ae237 100644
--- a/src/game/chr/chraicommands.c
+++ b/src/game/chr/chraicommands.c
@@ -14426,52 +14426,17 @@ glabel ai01dd
 /**
  * @cmd 01de
  */
-GLOBAL_ASM(
-glabel ai01de
-/*  f060048:	3c03800a */ 	lui	$v1,%hi(g_Vars)
-/*  f06004c:	24639fc0 */ 	addiu	$v1,$v1,%lo(g_Vars)
-/*  f060050:	8c6e0318 */ 	lw	$t6,0x318($v1)
-/*  f060054:	27bdffe8 */ 	addiu	$sp,$sp,-24
-/*  f060058:	afbf0014 */ 	sw	$ra,0x14($sp)
-/*  f06005c:	15c0000d */ 	bnez	$t6,.L0f060094
-/*  f060060:	3c0f800a */ 	lui	$t7,0x800a
-/*  f060064:	81f8dfeb */ 	lb	$t8,-0x2015($t7)
-/*  f060068:	0703000b */ 	bgezl	$t8,.L0f060098
-/*  f06006c:	8c790438 */ 	lw	$t9,0x438($v1)
-/*  f060070:	8c640434 */ 	lw	$a0,0x434($v1)
-/*  f060074:	8c650438 */ 	lw	$a1,0x438($v1)
-/*  f060078:	00851021 */ 	addu	$v0,$a0,$a1
-/*  f06007c:	0fc13583 */ 	jal	chraiGoToLabel
-/*  f060080:	90460002 */ 	lbu	$a2,0x2($v0)
-/*  f060084:	3c03800a */ 	lui	$v1,%hi(g_Vars)
-/*  f060088:	24639fc0 */ 	addiu	$v1,$v1,%lo(g_Vars)
-/*  f06008c:	10000004 */ 	beqz	$zero,.L0f0600a0
-/*  f060090:	ac620438 */ 	sw	$v0,0x438($v1)
-.L0f060094:
-/*  f060094:	8c790438 */ 	lw	$t9,0x438($v1)
-.L0f060098:
-/*  f060098:	27280003 */ 	addiu	$t0,$t9,0x3
-/*  f06009c:	ac680438 */ 	sw	$t0,0x438($v1)
-.L0f0600a0:
-/*  f0600a0:	8fbf0014 */ 	lw	$ra,0x14($sp)
-/*  f0600a4:	27bd0018 */ 	addiu	$sp,$sp,0x18
-/*  f0600a8:	00001025 */ 	or	$v0,$zero,$zero
-/*  f0600ac:	03e00008 */ 	jr	$ra
-/*  f0600b0:	00000000 */ 	sll	$zero,$zero,0x0
-);
+bool aiIfCoopMode(void)
+{
+	if (g_Vars.unk000318 == 0 && g_MissionConfig.iscoop) {
+		u8 *cmd = g_Vars.ailist + g_Vars.aioffset;
+		g_Vars.aioffset = chraiGoToLabel(g_Vars.ailist, g_Vars.aioffset, cmd[2]);
+	} else {
+		g_Vars.aioffset += 3;
+	}
 
-// Mismatch due to different temporary registers
-//bool ai01de(void)
-//{
-//	if (g_Vars.unk000318 == 0 && (s8)g_MissionConfig[3] < 0) {
-//		u8 *cmd = g_Vars.ailist + g_Vars.aioffset;
-//		g_Vars.aioffset = chraiGoToLabel(g_Vars.ailist, g_Vars.aioffset, cmd[2]);
-//	} else {
-//		g_Vars.aioffset += 3;
-//	}
-//
-//	return false;
-//}
+	return false;
+}
 
 /**
  * @cmd 01e0
diff --git a/src/include/commands.h b/src/include/commands.h
index 824089164..223ab9295 100644
--- a/src/include/commands.h
+++ b/src/include/commands.h
@@ -31,7 +31,7 @@
 	id,
 
 /**
- * Pauses the current script and yield execution back to the engine. At least
+ * Pauses the current script and yields execution back to the engine. At least
  * one frame will pass before the script is continued.
  *
  * To prevent infinite loops this must be called at least once per loop. This is
@@ -86,7 +86,7 @@
  * You would typically set this to the same list as the current one so the chr
  * continues doing what they were doing previously (eg. running to a target).
  * The list will be restarted from the beginning. You may want to use
- * if_just_injured near the top of the list so you detect then injury, make them
+ * if_just_injured near the top of the list so you detect the injury, make them
  * say something and wait for their injury animation to finish before they
  * continue their regular logic.
  */
@@ -189,6 +189,11 @@
 	mkshort(0x0012), \
 	label,
 
+/**
+ * Attempt to run and shoot. If it worked then go to the given label.
+ * The command may fail if the chr is blocked, or maybe if the chr can't see
+ * their target.
+ */
 #define try_run_and_shoot(label) \
 	mkshort(0x0013), \
 	label,
@@ -615,7 +620,7 @@
 	label,
 
 /**
- * Checks if the chr had shot nearly hit them.
+ * Checks if the chr had a shot nearly hit them.
  */
 #define if_near_miss(label) \
 	mkshort(0x004b), \
@@ -975,7 +980,7 @@
  * Checks if the given objective index is complete.
  *
  * This is not the same as the objective number. Objective indexes start from 0,
- * and some objective indexes do not apply to higher difficulties.
+ * and some objective indexes do not apply to easier difficulties.
  */
 #define if_objective_complete(objective, label) \
 	mkshort(0x0073), \
@@ -986,7 +991,7 @@
  * Checks if the given objective index is failed.
  *
  * This is not the same as the objective number. Objective indexes start from 0,
- * and some objective indexes do not apply to higher difficulties.
+ * and some objective indexes do not apply to easier difficulties.
  */
 #define if_objective_failed(objective, label) \
 	mkshort(0x0074), \
@@ -1588,7 +1593,7 @@
  *
  * padpreset can be referenced via PAD_PRESET.
  */
-#define chr_set_target_pad(pad) \
+#define chr_set_target_pad(chr, pad) \
 	mkshort(0x00b3), \
 	chr, \
 	mkshort(pad),
@@ -2102,7 +2107,7 @@
 /**
  * Checks if the player is invincible.
  *
- * Set set_invincible.
+ * See set_invincible.
  */
 #define if_player_is_invincible(chr, label) \
 	mkshort(0x00f8), \
@@ -2699,12 +2704,11 @@
 	object, \
 	0x00,
 
-// Related to hovercopter and Infiltration interceptors
-// Sets player struct's field_0x2e to 1/true.
+// Sets the heli's 0x90 field to true.
 #define cmd0143 \
 	mkshort(0x0143),
 
-// Sets heli field 0x90
+// Sets the heli's 0x90 field to false.
 #define cmd0144 \
 	mkshort(0x0144), \
 	label,
@@ -2896,8 +2900,8 @@
 
 // If bool is false, run some function on the chr and their gun ground
 // prop, then follow the label.
-// If bool is true, don't call the function, and only follow the label if field
-// 0x4 in the gun ground prop struct is less than 64.
+// If bool is true, don't call the function, and only follow the label if the
+// gun prop has OBJHIDDENFLAG_00000080.
 #define if_gun_landed(bool, label) \
 	mkshort(0x0170), \
 	bool, \
@@ -3724,7 +3728,12 @@
 	mkshort(distance / 10), \
 	label,
 
-// Not sure about this
+/**
+ * Checks if the game is being played in co-operative mode.
+ *
+ * This command does not check if the buddy is a human or bot. You can use
+ * if_num_human_players_lt for that.
+ */
 #define if_coop_mode(label) \
 	mkshort(0x01de), \
 	label,
diff --git a/src/include/game/chr/chraicommands.h b/src/include/game/chr/chraicommands.h
index 0423f2725..e6bb5550f 100644
--- a/src/include/game/chr/chraicommands.h
+++ b/src/include/game/chr/chraicommands.h
@@ -441,7 +441,7 @@
 /*0x01db*/ bool aiChrKill(void);
 /*0x01dc*/ bool aiRemoveWeaponFromInventory(void);
 /*0x01dd*/ bool ai01dd(void);
-/*0x01de*/ bool ai01de(void);
+/*0x01de*/ bool aiIfCoopMode(void);
 /*0x01df*/ bool aiIfChrSameFloorDistanceToPadLessThan(void);
 /*0x01e0*/ bool ai01e0(void);
 
diff --git a/src/setup/setup_000000.c b/src/setup/setup_000000.c
index f27426789..7b3ce8772 100644
--- a/src/setup/setup_000000.c
+++ b/src/setup/setup_000000.c
@@ -14613,7 +14613,7 @@ bool (*g_CommandPointers[])(void) = {
 	/*0x01db*/ aiChrKill,
 	/*0x01dc*/ aiRemoveWeaponFromInventory,
 	/*0x01dd*/ ai01dd,
-	/*0x01de*/ ai01de,
+	/*0x01de*/ aiIfCoopMode,
 	/*0x01df*/ aiIfChrSameFloorDistanceToPadLessThan,
 	/*0x01e0*/ ai01e0,
 };