Mad Jack - Survive the fights against Mad Jack

The Shark - Kill the Drug Dealer

Jayden Blues - Play the piano without a wrong note

Shrink and Punches - Stop Blake from hitting Dupre

Kramer's Party - Defeat Gordi's bodyguards

The Bear - Complete the Bear Trial successfully

Lexington Station - Find the correct locker on first try

Sleazy Place - Beat Troy

Platinum

Defeat 75 enemies in a row without dying

Defeat ten enemies in a row with a single punch, after softening them up with gunfire

Finish the game in Crushing Mode

Defeat ten enemies with grenades by aiming while hanging