Fun! Fun! Fun!
It's a well thought of game because of it's funny story and amazing graphics. The graphics, although it's 2D (which is kinda 3D on some parts), fits the game. The sound is also very much superb which fits the environment in the game. It's also not hard to keep up with the controls as it is explained as you go further in the game. It's a fun game and definitely worth playing.
The game will eventually be harder (duh!) as one goes further, but even so..one would keep trying again and again (i hope ;D) because the story is so much fun and will definitely hook the player.