P.B. Winterbottom is a thief. More specifically, he nicks pies - by the score. He loves pies, you see, living for nothing more than the satisfying crumble of pastry that unleashes the delicious warm contents within. Trying to steal a magical moving pie has sucked P.B. Winterbottom out of this world and given him mystical powers - can he use the powers to find his way through the levels and right the wrongs he caused?
Winterbottom (a much shorter name than The Misadventures of P.B. Winterbottom, which is why it will be referred to as such from now on) is a side-on platform puzzle game. If you've played Braid, it's got a lot in common with that, challenging players to use their various abilities to solve the puzzle that each level presents.
Winterbottom (the man, not the game) has developed the ability to create looping clones of himself. Simply hold in the right trigger, perform any action and then release the trigger and your clone will appear and endlessly loop through those actions unless you interrupt him. Using this core concept, you need to strategically place your clones so you can clamber over them, have them trip switches or throw you into the air.
Typically you'll be limited to the number of clones you can have active at any one time and many switches have a time-limited effect, resulting in some serious thought as to where to place your clones and what they should do. It's not just strategy either, with some genuine platforming skill required in order to execute the moves needed to complete the level.
That's probably a good time to talk about the difficulty of the game - it starts off simply enough, but very quickly ramps up to a combination of brain and twitch skill that will be more than the equal of most gamers. If you want a challenge, this is the game for you! It's rare to find a level you just don't see yourself being able to get past, but it's common to find a puzzle where you can see how to solve it but you just can't get it all together in the limited time available. It might take a few tries before you can put the moves together in order to progress, so patience is definitely required if you're going to complete this game.
The graphical style of the Winterbottom is a cool cartoony film-noir style (in look, if not in feel), with a silent film presentation, and amusing subtitles. It's carried off well and gives the game a humorous, not-entirely-serious air that well suits the content. You are, after all, plucking magic pies out of the air.
If you consider Super Mario Bros: The Lost Levels to be the pinnacle of platforming and want something with that level of difficulty combined with similarly challenging puzzles to solve, this is the perfect game for you. It looks great and is as hard as hell - that alone should tell you whether or not you should buy it.