Start a new game for the first time. (any difficulty setting)

Wield the knife in single player or co-op mode.

Upgrade a Weapon

Acquire the Pepper Grinder

Back to Wonderland

Take down 25 enemies while riding on the roof of a moving vehicle.

Buy out any one Upgrade ring.

Keep Berserk active for at least 21 seconds in one use.

Kill 5 enemies in one shot with Impact.

Make it through to the lair.

Open up the secret entrance.

Safely escort Winters through the depths.