Use your brain to solve these great puzzles.
That was rewarding and very well done. The puzzles were fun to solve because if you think it thru, you could "see the solution in your head", or at least I could. The rotation of the pipes control scheme worked well too.
The only question I had is: when there are 2 or more drain pipes on the bottom of the screen, you in some stages could use either one, however, one gives you game over and the other lets you onto the next stage. Is it a toss-up at that point?
Well anyway I just plugged away at it and beat the game anywhoooo.
---Ideas for you----
Multiple music tracks.
Background animations would have been slick (like a spider in the corner, or dripping water off some of the pipes).