Ballistik is effectively Breakout, the age-old brick-breaking game that people know and love for its pong-like simplicity. Ballistik doesn't futz with the concept too heavily, still providing you with a paddle, a ball, and a whole lot of bricks to break. In this case though, the bricks are fully 3D and the environments are quite large, and multistoried to boot.
Featuring 100 unique levels, each stage features tons of different arrangements of different types of blocks to break. Some blocks break huge rows in a domino-like effect; some require several hits to bust up; and others are completely invisible until you hit them at least once. Along the way, power-ups like guns, missile launchers, magnets, multiball splitters, and size-shifters for your paddle will float around, adding to the frenetic nature of the gameplay. However, even with all these crazy blocks and power-ups, you're still essentially playing Breakout.
And that's not a bad thing. As Breakout clones go, Ballistik does a good job of not killing the concept. Rather, it builds upon it naturally, and gives you plenty of levels in which to break all manner of block. It isn't rocket science, but it doesn't need to be. Check this one out.