Open your inventory.

Enter Practice mode

Use a Bodyshop to paint or repair your car for the first time

Get A+ on all the chapters

Perform every ground kill in the game.

Unlock all weapons

Use all melee weapons at least once

Use all guns at least once

Collect all the masks

Solve the Puzzle

Kill the crapping gangster with a fireaxe

Find Jones the Crocodile

Hit three or more enemies with the same weapon in one throw