It's rare to find a really enjoyable, playable game with a big sense of humor. (That first "Sam and Max" game was kind of fun, I suppose, and there's always the "Monkey Island" series.) Usually, in-game "comedy" is done "Duke Nukem"-style. Little repeated one-liners that play whenever you do a certain move or something. Weak.
Anyway, Mitchell is working on the walkthrough right now, as he plays through the game, and we've got lots of videos on there as well.
It's a great intro to the game if you're considering picking it up.