It'd be better w/o any sound
Graphics alone, you did a great, great job. Has a uniquenes in that respect. But then, you added sound, and that was terrible. Maybe turn down the volume on your mics a bit. And try not to sing. I realize you were probably trying to be funny, but there's a thin line between funny and annoying. The "plot" wasn't good, or bad. You did say in the beginning, he can kill you with cheese, so no comment on the giant block of cheese falling from the sky at the end. Kind of predictable, though. Keep using your style, just tweek your story telling.