Get Eaten By A Shark
On every level that has an ocean there is a boundary made of seaweed. if you (or one of the other characters) goes past the sea weed you/they will panic and splash then a Shark jumps up from underneath you and eats you.
Drop The Guitar
When you are in th level where you have to find new people (the ones on Jacks check list) after you get the girl you go back into the lobby and use Jacks compass and select the guitar and once you get it press jump twice and he should drop the guitar.
On each of the 4 level-select maps, there is a 6th secret point. Once you complete
all 5 stories for a movie, a skull and a cross bones appear on the map.
Finally highlight the skull and cross bones with the cursor to earn the “You’re
off the edge of the map” Achievement or Trophy.