I found it fun, but it seems like there's a steep learning curve, but not a steep difficulty curve, if you get what I mean. Once you start to understand the method, it's simple to eventually get through each level. Interesting all the same, though. Nice game.
PS: The music was rubbish.
All right, so I like it, though all the gripes here I've noticed, and they're all valid. (bad english)
This game needs some rethinking in some portions, maybe some way to make the special ninjas speedier to create more intensity, a combo system that makes sense, that kind of thing. It's a good basis for a game, I hope there's a remake with some of the less fun gameplay aspects taken away.
I can honestly say that this is the best game I've played on Kongregate. Great music, great concept, great graphics, hard-but-not-too-hard puzzles, creative... You've made something great here. A la 3d-logic this is a game that needs nearly no changes to make a brilliant sequel, so I'm just waiting impatiently for that. And badges :)
I hate to give it a low rating, since it's obviously not meant for my demographic (way too easy for us) so I just figured I'd give it the low rating based on the shortness of the game. 2/5 :)
interesting if only for the gameplay aspect of it. Music reminds me of the original star trek theme, prolly because of all the vocalizing. Fun all the same. I hate that damn replay button that pushes the next level button out of the way, but in a good way. Nice touch.
 "Demolition City")
 "loops of zen")
 "99 Bricks")
 "Zilch")
 "Hanna in a Choppa")
 "Vector Runner")
 "Achilles")
 "Typing Ninja Hunter")
 "Golden Arrow 3")
 "IndestructoTank! AE")
 "Epsilon")
 "Dino Run")
 "Professor Fizzwizzle")
 "Areas")
 "Mind Impulse")
 "ELEPHANT RAVE")
 "- Music in Motion -")
 "Mr. Bounce"){kind=icon}