Ok theres some kind of bug with the transition from level 20 to 21, probably since level 21 is the boss level where a giant stick figure appears and shoots spikes at you. On my flash player it works fine, but apparently some people are getting a bug right there. I don't really know what the problem is since I don't have other versions of flash to test the game, so if anyone would like to send me a picture of the bug or something, that would be good. Also, try updating your flash player to the newest version.
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