Fun game, but could have been better.
This game has pretty nice graphics and the chain reaction gameplay is a lot of fun especially as you get all of the upgrades to make it more satisfying. Unfortunately, the level design is not equally satisfying, and in the later levels I really had an overwhelming feeling of deja vu. Another problem with the level design is the lack of a difficulty curve. The game actually gets easier in later levels because the increased variety of goo balls, high level upgrades, and higher density of boost panels make clearing a room go even faster as the game wears on. This led to an overall very flat difficulty curve, and beating the game felt a bit hollow. If you ever make a sequel, I recommend you add some traps and obstructions to make things a bit more difficult in later levels.