diff --git a/games/lemm/Makefile b/games/lemm/Makefile
index 7fc21f56..0ea12403 100644
--- a/games/lemm/Makefile
+++ b/games/lemm/Makefile
@@ -169,6 +169,7 @@ lemm.inc:	generate_common LEMM
 	./generate_common -a 0x6000 -s erase_pointer lemm.lst >> lemm.inc
 	./generate_common -a 0x6000 -s update_remaining lemm.lst >> lemm.inc
 	./generate_common -a 0x6000 -s update_remaining_all lemm.lst >> lemm.inc
+	./generate_common -a 0x6000 -s collision_check_hazzard lemm.lst >> lemm.inc
 
 ####
 
diff --git a/games/lemm/level4.s b/games/lemm/level4.s
index 3e97a2a7..301a114d 100644
--- a/games/lemm/level4.s
+++ b/games/lemm/level4.s
@@ -251,6 +251,12 @@ l4_door_is_open:
 
 	jsr	move_lemmings
 
+	;=========================
+	; extra check if in water
+
+	jsr	collision_check_hazzard
+
+
 	jsr	draw_lemming
 
 	jsr	handle_keypress
diff --git a/games/lemm/move_lemming.s b/games/lemm/move_lemming.s
index a1fa856a..67bc4a5a 100644
--- a/games/lemm/move_lemming.s
+++ b/games/lemm/move_lemming.s
@@ -993,3 +993,45 @@ exit_y2_smc:
 not_done_level:
 	rts
 
+
+
+
+
+
+	;=============================
+	; check if hit hazzard
+	;=============================
+	; TODO: make configurable
+collision_check_hazzard:
+	ldy	#0
+	sty	CURRENT_LEMMING
+
+check_hazzard_loop:
+	ldy	CURRENT_LEMMING
+	lda	lemming_y,Y
+	cmp	#130
+	bcs	in_hazzard
+
+	bcc	continue_check_hazzard
+
+in_hazzard:
+
+	lda	lemming_status,Y
+	cmp	#LEMMING_SPLATTING
+	beq	continue_check_hazzard		; don't re-splat
+
+	lda	#LEMMING_SPLATTING
+	sta	lemming_status,Y
+
+	lda	#0
+	sta	lemming_frame,Y
+
+continue_check_hazzard:
+
+	inc	CURRENT_LEMMING
+	lda	CURRENT_LEMMING
+	cmp	#MAX_LEMMINGS
+	bne	check_hazzard_loop
+
+	rts
+