Movie Bonuses
If you get all of the movie bonuses in each level you will unlock a movie.
Skip movies
Just press the A button when someone is talking. It skips their sentence.
Levels
In the second level you will find navchips. If you get 10, Goddard help you get to the next level.
Talking sumo
In Asasan Village find the sumo freak and shoot him and he talks.