Reunite with GLaDOS

Player paid to get out of Jail when they had a Get out of Jail Free Card

Complete one combat challenge without taking damage

Deploy Star Power a total of 100 times (Quest)

Defeat 20 enemies with a single punch, after softening them up with gunfire

Kill Santa Claus

Defeat 250 enemies with headshots

Find 90 treasures

Find 80 treasures

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

Find 60 treasures

Find 40 treasures

Defeat 50 enemies with the M32 - Hammer