This game is pretty fun. I like each of the powerups, and especially like the feeling of nailing a perfect triple-shot triple-hit. The way the powerups are designed means they can combine their abilities, which made me play till I got every combination, just to see how cool they each were. On the flipside of the powerup diversity, however, is the actual challenge of the game, the boulders. They are all the same, and always fly at the same speed, on the same several paths, and with the same texture and animation. The most annoying part of the boulders is when they enter the screen from the very edge, meaning if you hadn't prefired, you're going to take a hit. Overall, it's a very fun game that needs a bit of diversity past the powerups to keep interest held long.