diff --git a/games/keen/draw_tilemap.s b/games/keen/draw_tilemap.s
index 67d68b5d..40229e05 100644
--- a/games/keen/draw_tilemap.s
+++ b/games/keen/draw_tilemap.s
@@ -159,4 +159,30 @@ cptl3_smc:
 	cmp	#TILEMAP_Y_COPY_SIZE
 	bne	cp_tilemap_outer_loop
 
+done_tilemap_subset:
+
+	; activate yorps
+
+	ldx	#0
+
+	clc
+	lda	TILEMAP_X
+	adc	#22
+	sta	INL
+activate_yorp_loop:
+
+	; if TILEMAP_X+22>YORP_X
+
+	lda	INL
+	cmp	enemy_data_tilex,X
+	bcc	next_yorp
+
+	lda	#1
+	sta	enemy_data_out,X
+
+next_yorp:
+	inx
+	cpx	#NUM_ENEMIES
+	bne	activate_yorp_loop
+
 	rts
diff --git a/games/keen/level1.s b/games/keen/level1.s
index 4e1aae76..10dde92f 100644
--- a/games/keen/level1.s
+++ b/games/keen/level1.s
@@ -232,7 +232,7 @@ level_end_animation:
 skip_end_sound:
 
 
-	lda	#100
+	lda	#50
 	jsr	WAIT
 
 	dec	YPOS
diff --git a/games/keen/level1_enemies.s b/games/keen/level1_enemies.s
index bb37b36b..0e2a2597 100644
--- a/games/keen/level1_enemies.s
+++ b/games/keen/level1_enemies.s
@@ -1,4 +1,4 @@
-NUM_ENEMIES = 4
+NUM_ENEMIES = 8
 
 
 	;=======================