Shrek 2

Mini-games:
Finish the game with a 100% completion to unlock five bonus mini-games.
Information in this section was contributed by bharat jayantilal sagar.

The mini-games are unlocked as you progress through the game, and will unlock at a certain number of missions completed.

Ring Colosseum: 21 missions
Floating Floor: 31 missions
Cloud Maze: 45 missions
Cage Drop: 59 missions
Crash Colosseum: 70 missions

Movie stills:
Successfully complete 70 missions.

Shrek and Donkey:
To get both Shrek and Donkey, hold L + R.
Information in this section was contributed by Bluebasket2.

Puss In Boots:
To unlock Puss In Boots, do the last chapter in the second book.
Information in this section was contributed by arbarak.