Complete World 1, "Bikini Bottom"

Complete World 2, "Coral Canyon"

Complete World 3, "The Desert"

Complete World 4, "The Trench"

Complete World 5, "Shell City"

Complete World 6, "Hasselhoff's Bikini"

Defeat Dennis on Hard Difficulty

Defeat King Neptune on Hard Difficulty

Visit Mindy's Shop

Complete all Bikini Booty levels

Defeat Dennis for the second time

Find your first Mustache powerup

Collect 500 Golden Clams

Drive the Patty Wagon