diff --git a/main.py b/main.py
index 8dc4d79..3c30043 100644
--- a/main.py
+++ b/main.py
@@ -6,6 +6,19 @@ LEFT  = 1
 DOWN  = 2
 RIGHT = 3
 
+def dir_str(dir):
+    if dir == UP:
+        return 'back'
+    elif dir == LEFT:
+        return 'left'
+    elif dir == DOWN:
+        return 'front'
+    elif dir == RIGHT:
+        return 'right'
+
+def image_path(dir, step):
+    return f"/flash/sprites/{dir_str(dir)}{str(step + 1)}.png"
+
 
 class Random:
     def __init__(self):
@@ -25,41 +38,8 @@ class Random:
 
 # screen coords range ±120 each side
 
-TRANSPARENT = (1, 0, 1)
-
-def to_image(str):
-    cols = {
-        ' ': TRANSPARENT,
-        '#': (0,   0,   0),
-        '%': (.6,  .6,  .6),
-        '*': (.26, .26, .26),
-        ':': (0,   .41, 0),
-        "'": (.87, .87, .87),
-        '.': (.87, .87, 0),
-    }
-    lines = str.strip().split('\n')
-    lmap = lambda f, xs: list(map(f, xs))
-    return lmap(lambda l: lmap(lambda c: cols[c], l), lines)
-
-
-quox_left_1 = to_image("""
-     %      *         
-%     %  * %*% *   :# 
-%%%% %%% *%%*%%*   ::%
- %%#%%%  *%%*%%*%*  :#
-  %%'%%% *%%*%*%*   :#
- %%%%%%:  *%*%**   ::%
-%%  %%#:::*%**%*:  :##
-      %%::::::%*::::% 
-      ##:::::::::::## 
-       %:::%#%:::%#%  
-      #*:::##*:::#    
-    ##***::#***::###  
-     ##.%%:##.%%:##   
-""")
-
 class Box(Responder):
-    STEP_DELAY = 500
+    STEP_DELAY = 250
     TURN_DELAY_BASE = 1400
 
     def __init__(self):
@@ -71,14 +51,18 @@ class Box(Responder):
 
     def draw(self, ctx):
         self.clear(ctx)
-        self.rect(ctx)
         # self.text(ctx)
+        self.image(ctx)
 
     def clear(self, ctx):
         ctx.rgb(0, 0, 0) \
            .rectangle(-120, -120, 240, 240) \
            .fill()
 
+    def image(self, ctx):
+        path = image_path(self.direction, self.step)
+        ctx.image(path, -10, -10, -1, -1)
+
     @staticmethod
     def coord(d):
         if d == UP:
@@ -98,8 +82,10 @@ class Box(Responder):
         ctx.rectangle(0, 0, *Box.coord(self.direction)).fill()
 
     def text(self, ctx):
-        ctx.rgb(1, 1, 1) \
-           .move_to(0, 0).text(str(self.delay) + '; ' + str(self.direction))
+        msg = f"{self.turn_delay}; {self.step_delay}; {self.direction}; {self.step}"
+        ctx.font_size = 16.0
+        ctx.text_align = ctx.CENTER
+        ctx.rgb(1, 1, 1).move_to(0, -100).text(msg)
 
     def think(self, state, Δ):
         self.update_delay(Δ)
@@ -113,7 +99,7 @@ class Box(Responder):
             self.choose_turn_delay(old_delay)
         if self.step_delay <= 0:
             self.step_delay = Box.STEP_DELAY
-            self.step = (self.step + 1) & 4
+            self.step = (self.step + 1) & 3
 
     def choose_direction(self):
         self.direction = self.random.direction()
diff --git a/sprites/back1.png b/sprites/back1.png
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diff --git a/sprites/back2.png b/sprites/back2.png
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diff --git a/sprites/back3.png b/sprites/back3.png
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diff --git a/sprites/back4.png b/sprites/back4.png
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diff --git a/sprites/front1.png b/sprites/front1.png
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diff --git a/sprites/left1.png b/sprites/left1.png
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diff --git a/sprites/left4.png b/sprites/left4.png
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diff --git a/sprites/right1.png b/sprites/right1.png
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diff --git a/sprites/right2.png b/sprites/right2.png
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diff --git a/sprites/right4.png b/sprites/right4.png
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