There's also this lifebar thing, which constantly drains away to nothing; the only way to stay alive is to constantly make huge explosions. The problem is that the bar is always draining, while the Beat Blocks only explode occasionally. This results in a lot of extremely frustrating situations where the lifebar is near death, a Beat Block is about to explode and refill the lifebar, but... the bar drains before the block explodes, and now you're just dead. It's a pretty unfortunate situation to put the player in, and it happens a lot.
Still, it's better than most of the other games I've played on the service. Crescendo Symphony, for example. Don't buy that game, okay? I've seen too many people make that mistake already.