Unlock the following accessories in the changing room by completing the corresponding multiplayer weapon challenges:
ACCESSORY - CHALLENGE Backwards Baseball Cap - Get 250 kills with the Shotgun (Burger Face III). Baseball Cap - Get 75 kills with pipe bombs (Splatter king III). Brain Sucker - Get 250 kills with the Enforcer (Laser Seeking Missiles III). Canadian Flag Logo - Get 75 kills with the Garter Pistol (Tiny But Deadly III). Cheese Hat - Get 250 kills with the Ripper (Swiss Cheese III). Detonator Logo - Get 250 kills with the Rocket Launcher (Boom Goes the Weasel III). Hoplite Helmet - Get 75 melee kills (Punchy McPuncher III). I Shot Stupid Logo - Get 250 kills with the Railgun (Right In the Eye III). Jester Hat - Get 75 kills with trip mines (Watch your step III). Military Hat - Get 250 kills with the Pistol (Size Doesn't Matter III). Retro Duke Logo - Get 250 kills with the Devestator (Meat Grinder III). Ski Goggles - Execute a frozen player 75 times (Ice to See You III). Tie-Dye Shirt - Get 250 kills with the AT laser (Medium Rare III). Uncle Sam Hat - Stomp on 75 enemies (Pee Wee Vermin III). Wolf Logo - Get 75 kills with Steroids (Roid Rage III). WTF Logo - Get 75 kills with exploding barrels (Smile You Son of a Bitch III).