diff --git a/two_player_cleaning_game/assets/battery_bar.aseprite b/two_player_cleaning_game/assets/battery_bar.aseprite
deleted file mode 100644
index ef1f0c4..0000000
Binary files a/two_player_cleaning_game/assets/battery_bar.aseprite and /dev/null differ
diff --git a/two_player_cleaning_game/assets/battery_bar.png b/two_player_cleaning_game/assets/battery_bar.png
deleted file mode 100644
index d4efcc9..0000000
Binary files a/two_player_cleaning_game/assets/battery_bar.png and /dev/null differ
diff --git a/two_player_cleaning_game/main.fnl b/two_player_cleaning_game/main.fnl
index 966f235..007bb31 100644
--- a/two_player_cleaning_game/main.fnl
+++ b/two_player_cleaning_game/main.fnl
@@ -29,7 +29,7 @@
 ;; global vars
 (var player-art nil) ; 25x50 pixels each player is 25x25
 (var dust-sprite nil) ; 35x35 pixels
-(var battery-bar-sprite nil)
+(var ui-bg nil)
 (var walls-sprite nil)
 (var walls-batch nil)
 (var wall-quads nil)
@@ -65,7 +65,7 @@
   ;; load world images
   (set walls-sprite (love.graphics.newImage "assets/walls.png"))
   (set walls-batch (love.graphics.newSpriteBatch walls-sprite 2500))
-  (set battery-bar-sprite (love.graphics.newImage "assets/battery_bar.png"))
+  (set ui-bg (love.graphics.newImage "assets/ui.png"))
 
   ;; load wall quads
   (set wall-quads [])
@@ -132,42 +132,34 @@ while 1 do love.event.push('stdin', io.read('*line')) end") :start))
     (each [_ collider (pairs collider-debug-boxes)]
       (love.graphics.rectangle "line" collider.x collider.y collider.width collider.height))))
 
-(local has-true? (fn [lst]
-  (accumulate [found? false _ v (ipairs lst)]
-    (or found? v))))
-
-; All true
-(local all-true? (fn [lst]
-  (accumulate [result true _ v (ipairs lst)]
-    (and result v))))
-
 (fn love.update [dt]
   ; move / rotate player
   (let [
-    d-key (love.keyboard.isDown :d)
-    a-key (love.keyboard.isDown :a)
-    e-key (love.keyboard.isDown :e)
-    q-key (love.keyboard.isDown :q)]
-    ; (print (fennel.view {: d-key : a-key : e-key : q-key}))
-    (match {:d-key d-key :a-key a-key :e-key e-key :q-key q-key}
-      {:d-key true  :a-key false :e-key false :q-key false} (tset player :rot (+ player.rot (* dt 2)))
-      {:d-key false :a-key true  :e-key false :q-key false} (tset player :rot (- player.rot (* dt 2)))
-      {:d-key false :a-key false :e-key true  :q-key false} (tset player :rot (- player.rot (* dt 2)))
-      {:d-key false :a-key false :e-key false :q-key true} (tset player :rot (+ player.rot (* dt 2)))
-    )
-    (when (and (> player.battery 0) (or d-key a-key e-key q-key))
-      (let [
-        dir-fn (if (or d-key a-key) #(+ $1 $2) #(- $1 $2))
-        new-x (dir-fn player.x (* player.speed dt (math.cos player.rot)))
-        new-y (dir-fn player.y (* player.speed dt (math.sin player.rot)))
-        (x y)  (bump-world:move player new-x new-y)]
-            (tset player :x x)
-            (tset player :y y))
-      (if (> player.battery 0)
-        (tset player :battery (- player.battery (* dt 2))))))
+    d (love.keyboard.isDown :d)
+    a (love.keyboard.isDown :a)
+    e (love.keyboard.isDown :e)
+    q (love.keyboard.isDown :q)]
+
+  (case [d a e q]
+    [true false false false] (tset player :rot (+ player.rot (* dt 2)))
+    [false true false false] (tset player :rot (- player.rot (* dt 2)))
+    [false false true false] (tset player :rot (- player.rot (* dt 2)))
+    [false false false true] (tset player :rot (+ player.rot (* dt 2)))
+  )
+
+  (if (or d a e q)
+    (let [
+      dir-fn (if (or d a) #(+ $1 $2) #(- $1 $2))
+      new-x (dir-fn player.x (* player.speed dt (math.cos player.rot)))
+      new-y (dir-fn player.y (* player.speed dt (math.sin player.rot)))
+      (x y)  (bump-world:move player new-x new-y)]
+          (tset player :x x)
+          (tset player :y y))))
+
   ;; Update camera to follow player (keep player centered on screen)
   (tset camera :x (- player.x (/ screen.canvas-w 2)))
-  (tset camera :y (- player.y (/ screen.canvas-h 2))))
+  (tset camera :y (- player.y (/ screen.canvas-h 2)))
+  )
 
 (fn draw-ui []
   (love.graphics.push)
@@ -176,12 +168,12 @@ while 1 do love.event.push('stdin', io.read('*line')) end") :start))
     (set-color :cream)
     (love.graphics.rectangle "fill" 0 0 screen.canvas-w 100)
     (reset-color)
-    (love.graphics.draw battery-bar-sprite 78 8)
+    (love.graphics.draw ui-bg 0 0)
     (set-color :dark-purple)
     (love.graphics.setFont font)
-    (love.graphics.print (.. "Battery: " (string.format "%d" player.battery) "%") 6 7)
+    (love.graphics.print "Battery:" 20 6)
     (set-color :light-blue)
-    (love.graphics.rectangle "fill" 80 12 (* 152 (/ player.battery 100)) 4)
+    (love.graphics.rectangle "fill" 72 12 (* 152 (/ player.battery 100)) 4)
     (love.graphics.setFont font-small)
     (set-color :dark-purple)
     (love.graphics.print "100%" 229 2)