diff --git a/tests/cratestack.lua b/tests/cratestack.lua
index c981ab0..fec42aa 100644
--- a/tests/cratestack.lua
+++ b/tests/cratestack.lua
@@ -23,6 +23,7 @@ function init_event()
     ag.setCamera(2, -12, 8, 0, 0, 2, 0, 0, 1)
 
     iris = ag.loadSound("iris.mp3")
+    hit_pins = ag.loadSound("hit_pins.mp3")
 end
 
 function key_down_event(key)
@@ -48,6 +49,10 @@ function key_down_event(key)
             iris:resume()
             playing = true
         end
+    elseif (key == "h") then
+        hit_pins:play()
+    elseif (key == "l") then
+        hit_pins:loop(3)
     end
 end