This is one of the funniest games I have ever played on a console!
By fun I mean: easy to learn how to play, entertaining, short levels (none has taken more than 10-12 minutes, which is perfect for casual gamers or even kids!), the ability to play alone or with others (locally or via the Internet) and the replayability value (see below).
It has splendid graphics, a superb soundtrack that fits with all the levels, and most levels are easy to finish, but hard to "complete" (you can get pretty easily to the end, but it's another "game" to find 100% of the hidden objects/bonuses).
The "Story" mode does not take that long to finish, but the fact that anybody can create their own levels using the physics engine and even adding up your own objects or stickers adds a lot to the replayability factor.
I have played many of the user-created levels and a lot of them are really fun! (to name a few: Indiana Jones, American Gladiators, LittleBIG Ninja Warrior, and so much more!)
I recommend this game to everybody who owns a PS3!