I see you used music from RPG Maker 2000 / 2003.
My computer is old and slow and I can't play this as well. It's a shame because this looks like a really promising game, but my computer can't play it very well without it slowing down.
Graphics - They look hand-drawn. For hand-drawn graphics, they look pretty good. 7/10.
Style - Your idea was a twist on the usual defense games, but to be honest this genre of game is on its way out. You lost a lot of marks on this one, but the things you implemented in the game was enough to right it a bit. I gave you a 4/10 for it.
Sound - Well, I noticed the music from RPG Maker 2000 / 2003. It's a nice idea to put it into a flash game. I give five points for music and five points for sound. You got a four on music - very good - but I couldn't play the game long enough to hear a lot of sound effects, so I gave you a 1. Overall, you got a 5/10 on this.
Violence - Consisting of whirlpools, rocks, and other things in the game for your arsenal for the first stage. None of them seemed to do much, but perhaps I didn't understand the instructions correctly. You got a 0 here.
Interactivity - This was good. Fully functional menu (very nice!) and when I pressed a button, something always happened. 8/10.
Humor - I laughed a bit when hearing the RPG music, but that was it. 1/10.
OVERALL - This was a good idea, but again, this genre of gaming is getting old. A very good try, though. Keep it up!
Overall mark - 6/10.