I find the concept interesting, but the rest is mediocre to poor. The animation is slow and the controls are unresponsive. It is difficult to judge how long the lights will last, and the game is too unforgiving to guess, even on the first couple of levels. I like that the tongue attack is only a stun, and the guard alert levels, although there is no indication in the tutorial that the guards have alert levels (I never would have made it past the first floor if I hadn't scrolled down the comments to see your hint).
The level design is unforgiving to a new player, as your timing needs to be impeccable. Some sort of dodge or duck ability would be nice.
The art quality is really poor. Not only are the initial slides in the intro nearly unreadable, but multiple images within levels seem to be taken from different sources and pasted together, making it seem thrown together. Even doing the whole level in poor line drawings creates a sense of cohesion and style. You could do more with the background than pure, stark white, both to improve game-play and the visuals (make the white only come from the lights, for instance.
The concept is interesting, and should be looked at more -- especially in combination with color theory, or lighting effects.
The whole game needs a lot of elbow grease and polish. In this state, 3/10
