Took me a bit to figure out that the countdowns were for the recharge of the attacks. I didn't seem to see anything happen for the forth one (r) even though the counter reset.

Cool game, but I was unable to see much of the theme in this.

The shark attack seems to be useless, but the others works great. I manage to get about 8k points befor beeing surrounded. :)

Nice game, without anymore zombies left, I stop playing with 780 points.

I got to 14,480 before I decided I was getting bored and stopped. Basically I hung out in a corner where nothing was likely to spawn around me, dropped sharks whenever I could, and just used Q and W to clear out lines of zombies with the occasional E to run in the center of groups that survived.

Models were okay I guess except that the shark looked more like a whale to me, especially given its size. Also the Elephant Stomp looked more like a crocodile head or something. On the way up in score, the screen got more and more shakey, which was really weird.

Didn't really jive with the theme, either.

Could be good if there were more going on with it difficulty-wise, though. You got all the basics down right, except sound. I guess maybe make more enemy types that unlock as you continue? Like maybe a tough enemy that can only be killed by the E or R, a fast enemy that can overtake you if you run away from it, etc.