diff --git a/autogen/lua_definitions/constants.lua b/autogen/lua_definitions/constants.lua
index 184e350a..36e3742f 100644
--- a/autogen/lua_definitions/constants.lua
+++ b/autogen/lua_definitions/constants.lua
@@ -9066,7 +9066,10 @@ HOOK_DIALOG_SOUND = 35
 HOOK_ON_HUD_RENDER_BEHIND = 36
 
 --- @type LuaHookedEventType
-HOOK_MAX = 37
+HOOK_ON_COLLIDE_LEVEL_BOUNDS = 37
+
+--- @type LuaHookedEventType
+HOOK_MAX = 38
 
 --- @class HudDisplayFlags
 
diff --git a/docs/lua/constants.md b/docs/lua/constants.md
index 1e19b11c..c8bbd972 100644
--- a/docs/lua/constants.md
+++ b/docs/lua/constants.md
@@ -3236,7 +3236,8 @@
 | HOOK_ON_EXIT | 34 |
 | HOOK_DIALOG_SOUND | 35 |
 | HOOK_ON_HUD_RENDER_BEHIND | 36 |
-| HOOK_MAX | 37 |
+| HOOK_ON_COLLIDE_LEVEL_BOUNDS | 37 |
+| HOOK_MAX | 38 |
 
 [:arrow_up_small:](#)
 
diff --git a/src/game/mario_step.c b/src/game/mario_step.c
index 8a491157..e6bd675f 100644
--- a/src/game/mario_step.c
+++ b/src/game/mario_step.c
@@ -294,6 +294,8 @@ static s32 perform_ground_quarter_step(struct MarioState *m, Vec3f nextPos) {
     mario_update_wall(m, &upperWcd);
 
     if (floor == NULL) {
+        //HOOK_ON_COLLIDE_LEVEL_BOUNDS, coopdx
+        smlua_call_event_hooks_mario_param(HOOK_ON_COLLIDE_LEVEL_BOUNDS, m);
         return GROUND_STEP_HIT_WALL_STOP_QSTEPS;
     }
 
@@ -468,6 +470,8 @@ s32 perform_air_quarter_step(struct MarioState *m, Vec3f intendedPos, u32 stepAr
         }
 
         m->pos[1] = nextPos[1];
+        //HOOK_ON_COLLIDE_LEVEL_BOUNDS, coopdx
+        smlua_call_event_hooks_mario_param(HOOK_ON_COLLIDE_LEVEL_BOUNDS, m);
         return AIR_STEP_HIT_WALL;
     }
 
diff --git a/src/pc/lua/smlua_constants_autogen.c b/src/pc/lua/smlua_constants_autogen.c
index 1ca65dca..fb82b08a 100644
--- a/src/pc/lua/smlua_constants_autogen.c
+++ b/src/pc/lua/smlua_constants_autogen.c
@@ -3214,7 +3214,8 @@ char gSmluaConstants[] = ""
 "HOOK_ON_EXIT = 34\n"
 "HOOK_DIALOG_SOUND = 35\n"
 "HOOK_ON_HUD_RENDER_BEHIND = 36\n"
-"HOOK_MAX = 37\n"
+"HOOK_ON_COLLIDE_LEVEL_BOUNDS = 37\n"
+"HOOK_MAX = 38\n"
 "ACTION_HOOK_EVERY_FRAME = 0\n"
 "ACTION_HOOK_GRAVITY = 1\n"
 "ACTION_HOOK_MAX = 2\n"
diff --git a/src/pc/lua/smlua_hooks.h b/src/pc/lua/smlua_hooks.h
index 8d74a463..4700d018 100644
--- a/src/pc/lua/smlua_hooks.h
+++ b/src/pc/lua/smlua_hooks.h
@@ -48,6 +48,7 @@ enum LuaHookedEventType {
     HOOK_ON_EXIT,
     HOOK_DIALOG_SOUND,
     HOOK_ON_HUD_RENDER_BEHIND,
+    HOOK_ON_COLLIDE_LEVEL_BOUNDS,
     HOOK_MAX,
 };
 
@@ -89,6 +90,7 @@ static const char* LuaHookedEventTypeName[] = {
     "HOOK_ON_EXIT",
     "HOOK_DIALOG_SOUND",
     "HOOK_ON_HUD_RENDER_BEHIND",
+    "HOOK_ON_COLLIDE_LEVEL_BOUNDS",
     "HOOK_MAX"
 };