I have a power ball in Centigrade 37 and have tried it in a few other games such as Paragon. It definitely changes the game play and makes things interesting on an old familiar game. Not a ton, but enough to change up the shots just a little bit and make the game faster too. For Centigrade 37 it makes the game tougher. I haven't kept stats but it sure seems to keep my scores down a little. I was thinking about moving it to another game. My Joker Poker is hard enough already! I might try Volley.