Spend 200,000 credits at the store

Kill 30 enemies with the Pulse Rifle

Kill the Leviathan

Kill 30 enemies with the Line Gun

Collect 75 Logs

Complete Chapter 4 on any difficulty setting

Dismember 500 Limbs

Complete Chapter 3 on any difficulty setting

Finish the story on Medium difficulty level or higher.

Sell 5 vehicles to Mike Bruski at the scrapyard.

Kill 30 enemies with the Plasma Cutter

Dismember 20 Limbs