Change your costume

Find Nathan Gould

Assimilate alien tissue at the crash site

Finish the game in Easy Mode

Complete the game with more than $3,000,000 in property damage.

Defeat 20 enemies by blind-firing while in cover (without aiming with L1/R1)

Complete Arcade Mode with Raiden

Complete Arcade Mode with Sir Daniel

Complete Arcade Mode with PaRappa

Show off your Minion during a game

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)

Find 20 treasures