diff --git a/snowdogs.p8 b/snowdogs.p8
index 559375e..8f87c58 100644
--- a/snowdogs.p8
+++ b/snowdogs.p8
@@ -35,7 +35,7 @@ function _draw()
 		draw_game()
 		draw_snow()
 		draw_hud()
-		--draw_bounds()
+		draw_bounds()
 	elseif mode == "gameover" then
 		draw_flag()
 	end
@@ -100,23 +100,6 @@ function title_dr()
 	 48, 48)
 end	
 
-function draw_fan(x, y)
-	spr(flr(1+(t() % 2)), x, y, 1, 2, flr(t()) % 3 == 1)
-	spr(33, x, y+16)
-end
-
-function draw_yeti(x, y)
-	spr(35, x, y, 1, 2)
-	spr(35, x-8, y, 1, 2, true)
-end
-
-function draw_siren(x, y)
-	spr(3, x, y, 1, 2)
-end
-
-function draw_moose(x, y)
-	spr(13, x, y, 2, 2, true)
-end
 
 function cast_dr()
 	snowbg()
@@ -277,7 +260,9 @@ function crash()
 	if dogs == 0 then
 		mode = "gameover"
 	end
-	sled_x = tree_wall[8].l + tree_wall[8].w / 2
+	local ti = (cur_tree() + 8) % #tree_wall + 1
+	l, r = tree_bounds()
+	sled_x = (l + r) / 2
 end
 
 function sled_dr()
@@ -321,7 +306,7 @@ function screenx(x)
 end
 
 function cur_tree()
-	-- 
+	-- tree at top of screen right now (cycles)
 	return #tree_wall - flr((distance / 16) % #tree_wall)
 end
 
@@ -370,13 +355,44 @@ function tree_bounds()
 	-- return left, right
 	-- use wall based on dogs
 	-- remaining
-	w = {8, 8, 7, 7, 6, 6}
-	w = w[dogs]
-	l = tree_wall[w].l
+	local ti = cur_tree()
+	if dogs >= 5 then
+		ti += 5
+	elseif dogs >= 3 then
+		ti += 6
+	else
+		ti += 7
+	end
+	if ti > #tree_wall then
+		ti -= #tree_wall
+	end
+	l = tree_wall[ti].l
 	-- middle of tree is bound
-	return l+8, l+tree_wall[w].w+8
+	return l+8, l+tree_wall[ti].w+8
 end
 
+-->8
+--npcs
+
+function draw_fan(x, y)
+	spr(flr(1+(t() % 2)), x, y, 1, 2, flr(t()) % 3 == 1)
+	spr(33, x, y+16)
+end
+
+function draw_yeti(x, y)
+	spr(35, x, y, 1, 2)
+	spr(35, x-8, y, 1, 2, true)
+end
+
+function draw_siren(x, y)
+	spr(3, x, y, 1, 2)
+end
+
+function draw_moose(x, y)
+	spr(13, x, y, 2, 2, true)
+end
+
+
 -->8
 --end screens