Finished a Level

Rescued all the Kids

Unlocked the Beagle Scout Costume

Unlocked the Astronaut Costume

Unlocked the Flying Ace Costume

Completed all Peppermint Jungle levels

Completed all Temple of Bunnies levels

Completed all Lunar Surface levels

Completed all Parisian Underground levels

Completed all Melody Chateau levels

Completed all Skies of Paris levels

Collected all Jelly Beans in a single level

Collected all kids objects

Unlocked the Masked Marvel Costume

Unlocked the Joe Cool Costume

Unlocked the Detective Costume

Unlocked all Costumes

As normal Snoopy hovered for more than 5 seconds

Jumped on three enemies without touching the ground

Broke through a wall as the Masked Marvel

Defeated The Mask Boss without being hit

A second player activated a Woodstock trigger