There are so many hours of game play on here, with a ton of extra modes Including Swap, which sees the game switch between Tetris and Puyo Puyo with out much warning and Fusion mode which mixes the two games together. there are also other modes here which will ramp up the tension while you play but if I am honest I have not tried them all as I have been working my way through the games story mode. The main mode in single player is the cute style adventure mode, but don't let the happy colourful look fool you, if you are not ready for it the adventure mode will chew you up and spit you out. I have killed hours trying to beat the later stages in the game, the AI on here is brilliant, it plays the way a person would, still making mistakes but ready to just crush you for the mistakes you make.
The one kind of negative for me, but is also handy, is the quick drop setting for Tetris but this is more sour grapes as it has screwed me over a good few times. The other slight negative is the lack of decent collectibles to spend your game points on. I mean the different designs are a nice change and the voices to unlock makes a change, but I would have liked to see a bit more in there to extend the game a little further.Other than that Puyo Puyo Tetris is a perfect game, a great party game but also a fun game to play solo too. This is a must have game and I would even say get it on physical disk.