The psychics are definitely the main thing of controversy here. In most levels the change doesn't really effect anything and they still play great but in a few of them you can feel the change pretty hard which makes them harder and more frustrating than they should be. Not "unplayable" imo but just a really unfortunate problem for there to be when it really didn't need to be there.
But as a package this is fantastic. Three great Monkey Ball games that are fun singleplayer and as party with unlockables that can give you more content like a reverse mode, and original stages. Tons of minigames that can be really fun party games (I've heard some of the mini games feel a bit off, I can't say for sure been too long since I played originals). Very fun game and it was nice to play some good old monkey ball again after so long. And it has Kiryu