Been playing awhile, and I give this game 5-out-of-5 stars! Excellent gameplay that starts out hard, but you quickly begin to get better and better. You can unlock new characters, each with a different set of abilities. Upgrading the character to a new level will make the game easier obviously. The game could have lots of things done to it to make it better, but it's good as-is. It randomly picks levels, and sometimes each level has something different about it. The game could probably be beat in about 5 hours, so it needs to have new content added regularly. Such as new levels, characters, and other special stuff.