Really nice game, I like the idea - definitely keeps with the theme and the fact you managed to include a cutscene is awesome! I got to the final wave - definitely a bit intense right at the end, but a nice curve up until then, found a system that works :D
Here's my feedback (Don't take any of it to heart, you're game is still awesome!):
- I found a bug right at the beginning where the player "jittered" all over the place, happened when I collided with the walls too, this kind of hurt my eyes.
- I really appreciate a mute button somewhere, I watch youtube while playing games
- The time limit could be made a tiny bit more obvious, maybe with a large flashing countdown when it gets below 5?
- Maybe you could have a way to save yourself, like a time extension but you have to spend money, and then you're rated out of 3 stars at the end maybe? depending on how much money you have... Although this is just an idea to make you're game a bit easier.
- Finally a tip I dont think you need but I found out somewhere, if you can't win in a 3rd of the time, it's too difficult - although your game wasn't for me :D
Either way that's just my feedback, it was an awesome game all the same!