This is so creative, I love that the map is the shark's mouth I would never have been able to come up with that! Also one of the best uses of the theme, excellent job (:
With a mouth like this, just imagine what a bite mark from this dude looks like in an sandwich! I know I sure imagine it...
The only thing I think could be improved is that maybe the last few levels could have another mechanic or something added to them to keep things fresh, but dang I really like how creative this game is already