Although fun at first going slow-motion gets old after awhile its like you've done it before. OH WAIT YOU HAVE. Sylvia's replay feature is completely useless. The designers just threw in challenges only for her so her character isn't completely ignored. Pretty good but fighting the same robots over and over is just stupid. After a while you just want to turn the game off. The bosses have some dumb concepts and it takes forever to beat them then it gives you a bad rating. Overall pretty boring after awhile but fun while it last just DON'T BOTHER WITH SILVIA'S UPGRADES.