Seriously impressive for only 3 days of work. Good Job! It looks nice, sounds and nice and is fun to play; can't ask for much more.
I must admit that I don't see how it fits in with the theme? I feel like I'm missing something obvious
It barely fits with the theme, only 3 things use the theme, the count down at the start, All four characters have 3 health points and the cannons take 3 seconds to shoot