Nice, original game
Graphics - Nice vehicle and enemy design, although some more detail could have been used (then again, I'm a perfectionist asshole). Explosions were what really counted though.
Style - Really good idea, and well executed.
Sound - Music got annoying after a while, but not drastically so. SFX were well done, all around.
Violence - Duh.
Interactivity - Really, when it comes right down to it, you only move back and forth. An 8 for a fun, yet simple, interface.
Humor - Big tank flying around, bouncing off of planes and helicopters. Just the picture in my head is amusing.
Overall - Very nice game. I'm gonna go play it right now.