Complete Hard mode

Destroy 30 cameras and laser devices

Obtain 25% of all Collectibles

Defeat a Secret Boss

Enter the Pizza Room during the snapshots when a boss is defeated

Activate the ceiling switch during the battle with Slash

Play online at least once

Equip at least one Emblem to your profile

Grind rails for 300 feet

Defeat 1000 enemies

Defeat 50 enemies with headshots

Make 10 enemies drop their grenades

Defeat 10 enemies in 60 seconds with the China Lake Grenade Launcher