There's a fine line between casually experimenting
and taking WAY TOO MUCH ACID. Don't ask me to draw it.
This is what happens when the Mario brothers (a la their GBA game) get together with Doctor Seuss to watch Fear and Loathing!
But seriously, there are some really neat, and completely original, mechanics here, and you get many, many points for that. The view switch in battle for the different characters I have never seen before. The timed turn system vaguely reminds me of the WORMS series, but is unique in its implementation. Like some other reviewers have noted, I did feel that there's a lot of un-tapped potential there for more interaction between characters. In fact, I was a little disappointed when I didn't have to blow the boss's mask off with the bomb shot combo before I could damage it with the hammer. I also agree with the other reviewers that the controls felt a little awkward. The WASD/mouse thing is in right now, but when you throw in character switching and different views, it just feels like there must be a simpler way to do it.
The art, man! I can't get over it. I've never seen anything like that, not even when I read Dr. Seuss all the time!
The bottom line is that you've got something unique here, and I think I speak for everyone's curiosity when I say that I want to see it developed further. With all the creativity in these environments, characters, and gameplay, you can definitely go further with the mechanics you've introduced. I want to knock stuff over with the hammer, use the gun to drop a chandelier on the giant worm's head... blow the mask off the boss's face! If you can make something like this, then you can definitely make something where I can do that.