A lot of people think that all licensed games are crap, but there are some gems out there. This is a thread for posting your favorites. I'll start:
I recently played Daffy Duck: The Marvin Missions for the Super NES. I'm a big fan of Duck Dodgers (the original short is one of my all time favorite cartoons) and I thought it was cool that someone made a game out of it. The game is fairly easy and a lot of fun. Each level has multiple ways to get to the end, so if you play the game more than once, you won't necessarily take the same path each time, adding some nice replay value.
Also, I'm very impressed by Dragonball: Advanced Adventure for the GBA. I like Banpresto's anime games and this is one of their all time best IMO (although I'm currently stuck on the World Tournament level. I just can't seem to beat Jackie Chun).