That Peter Molydeux, eh?
Simple idea=simple game. Being a die hard of Majora's Mask, I've always wanted to tinker with the idea of time and what you choose to do in dire times. The music strongly gives the feeling of incoming doom and acceptance of death, drawing me into trying harder to accomplish unlocking the next level. I found it a bit odd that people who were higher up on the screen died first from the asteroid. Perhaps using a shadow in the center (perspective), shakiness of the screen, fire in the sky... Having it like that would make it harder to see, but then again, it's a bleak outcome for the inhabitants of the world.
Nicely done, but don't forget what you learned from this game to help improve the next project.