Finish all multiplayer maps on Gold or all single-player missions on Insanity.

Reach level 20 in multiplayer or level 60 in single-player.

Buy an insanely expensive car.

Promote a multiplayer character to the Galaxy at War or import an ME3 character.

Single Player: Kill 5 enemies while sliding

Collect 256 paint colors.

Complete the single player campaign on Veteran difficulty

Break the speed limit in front of 10 speed cameras

Complete 12 levels on Veteran difficulty

Kill 10 enemies by throwing an object at them

Complete 6 levels on Veteran difficulty

Multiplayer: Unlock all the weapons