Great concept!

Nice, fun, tropical theme.

Started out fun, but then I found out that I could just hold 'f' and they never ener the screen. I did this for like 400 seconds before I finally decided it was time to let go. No high score, though because it glitched and the timer continued after I let them knock down the tower. I could really see this being fun if you just improve the A.I. and maybe add upgrades.

I think this is a cute idea, but could use some refining. I basically spammed the buttons and nothing ever reached my tower, so maybe fewer cannonballs on the screen at a time would help with that. Since the core loop of the game is simple, I would work on refining that and making the game more strategic.