I've been playing De Blob 2 for a couple weeks now, after buying it on release day. The first De Blob was one of my favorite games for the Wii. I bought this de Blob 2 for the PS3 because I wanted to play the game in HD.
I was slightly worried about the transition from using a Wii controller to using the PS3 controller. I was pleasantly surprised though. When playing on the Wii, my arms would start to hurt from flicking the remote. The PS3 version (when played with the regular controller, not the "Move") only requires minimal use of the controller's motion sensor. The controls are smooth and it was an easy transition from Wii to PS3.
As in the first de Blob, evil creatures have taken over the world and removed its color. Your job as De Blob is to add color to the world by painting yourself and then touching objects. Various enemies try to spray you with black gunk as you make your way through the levels.
Each level has a main goal - such as liberating university professors and students from a black and white world. After completing the main objective, there are ancillary quests such as repainting billboards or bringing trees back to life. There are also various items to collect - such as light bulbs that allow you to upgrade De Blob, purple swirls that make De Blob paint in patterns instead of just plain color, and pictures for the picture gallery.
This game is rather hypnotic and relaxing. I've only been frustrated once so far when I kept running out of time on one particular level. I've played about 14 hours now and think I have about halfway to go. The ancillary missions comprise about 25% of the play time, so if these missions don't interest you, the game will likely be quite short.
I love this game and hope the developers come out with a third iteration.