Aaah, a puzzle game. Everyone loves puzzlegames.
It looks like a real interesting twist to tetris. As far as the colorbonus goes, I might have misunderstood the system, but I think it would be clearer if you a) display that you're "almost there" to get the colorbonus and b) get the colorbonus not for closing three same-colored pipes in a row, but if one pipe is connected to pipes all of the same color. See what I mean? Oh well, probably not
Anyway, what you have here is an awesome start. I really like the idea. From watching the video, I feel that a little more feedback would be nice. The best thing right now you can do to increase the feedback is to adjust the music as people play. You might even analyze the stlye of play and adjust the music to that (I tried that concept in one of the new ExperimentalGamdesign-games, it works pretty well
). Or you might make the soundeffects when pipes land more interesting. Players may create their own rythm in the game!
Other than adjusting audio, you may adjust video. You can combine that by creating simple, but colorful particle-streaks or whatever in the background. Start with a black background and as you go, there will be a unique colored scene (the game I mentioned earlier uses this concept as well and it's awesome
)
Whats more? As it takes quite a while for a levelup, I'd combine that with a bonus round. For example, water may flow out of certain pipes. You have to close them before the water reaches a certain high, otherwise you'll punish the player with a few pipes more. If he manages to close them all, though, some pipes might be removed.
Again: Looks good so far! You may completely ignore the advices I've given - it's just what I'd do at this point
