Shark's Revenge(DEMO!)

Hey everyone! Been learning coding for about the last three weeks, and finally have something that I can submit as a partially completed game. I was hoping to get some feedback on features that would be nice to integrate. Features I?m already planning on are:

Score

Random shark facts between playing

a feature to eat the scuba guy?s legs

multiple enemies, but I could use some ideas on what kinds of enemies to add

possibly have the scuba guys shoot the harpoons?

better graphics (yeah, I did em all myself? I?m no artist.)

PLEASE don?t just tell me you hate the game, give me some feedback to make it better, I want to make this game awesome :)

Update(18-November-09):

Hey, I realized how much less entertaining a demo can be without a score, so I went ahead and added one. Please keep up with the feedback on what would be good to implement in the real version of the game!