Win a Deathmatch mode (free-for-all or as a team)

Taunt 25 times in any Multiplayer match

Kill 3 members of the opposing team with a melee attack before you die in Multiplayer

Kill Meg during any Multiplayer Match

Complete the "No Cheese, Please" level

Complete the "Pussy Whipped" level

Complete the "Something's Amish" level

Perform a multi-kill with a grenade

Defeat 10 enemies with a melee weapon

Kill an enemy with a single shot to the head

Destroy all of the piñatas in the "It's All Greek to Me" level

Unlock your first patrol car.