diff --git a/lib/demo/bowling.lua b/lib/demo/bowling.lua
index 0735096..53e0d18 100644
--- a/lib/demo/bowling.lua
+++ b/lib/demo/bowling.lua
@@ -34,7 +34,7 @@ function setupStars()
     stars = ag.startList()
     local dist = 500
     for i = 1, 500 do
-        local rx = math.random() * math.pi * 2
+        local rx = math.random() * math.pi
         local ry = (math.random() - 0.5) * math.pi * 0.8
         local x = dist * math.cos(ry) * math.cos(rx)
         local y = dist * math.cos(ry) * math.sin(rx)
@@ -147,11 +147,19 @@ function drawFrameScore(width, height, frame, fs)
         local_width = 80
     end
     local base_x = size / 2 + size * (frame - 1)
-    local base_y = height - size / 2 - size
-    ag.drawRect(1, 0.6, 0, local_width, size, base_x + local_width / 2, base_y + size / 2)
-    ag.drawRect(1, 0.6, 0, ball_size, ball_size, base_x + local_width - ball_size / 2, base_y + size - ball_size / 2)
+    local base_y = height - 2 * size
+    local str = string.format("%d", frame)
+    local w, h = ag.getTextSize(str, 16)
+    ag.drawText(str, 1, 0.6, 0, 16,
+        base_x + local_width / 2 - w / 2, base_y + size + 5)
+    ag.drawRect(1, 0.6, 0, local_width, size,
+        base_x + local_width / 2, base_y + size / 2)
+    ag.drawRect(1, 0.6, 0, ball_size, ball_size,
+        base_x + local_width - ball_size / 2, base_y + size - ball_size / 2)
     if (frame == 10) then
-        ag.drawRect(1, 0.6, 0, ball_size, ball_size, base_x + local_width - ball_size * 1.5, base_y + size - ball_size / 2)
+        ag.drawRect(1, 0.6, 0, ball_size, ball_size,
+            base_x + local_width - ball_size * 1.5,
+            base_y + size - ball_size / 2)
     end
 
     local balls = 2
@@ -197,6 +205,15 @@ function update_overlay_event(width, height)
         local score_str = string.format("Score: %d", score[10]["tot"])
         w, h = ag.getTextSize(score_str, 56)
         ag.drawText(score_str, 1, 1, 0, 56, width / 2 - w / 2, height * 0.7 - 20 - h / 2)
+    else
+        local str = string.format("%d", current_frame)
+        local w, h = ag.getTextSize(str, 72)
+        ag.drawText(str, 1, 0.6, 0, 72, 20, 20)
+        ag.drawText("Frame:", 1, 0.6, 0, 24, 20, 40 + h)
+        str = string.format("%d", current_ball)
+        w, h = ag.getTextSize(str, 72)
+        ag.drawText(str, 1, 0.6, 0, 72, 200, 20)
+        ag.drawText("Ball:", 1, 0.6, 0, 24, 200, 40 + h)
     end
 end