EMPTY SHELL achievements

Own 5000+ credits at the same time

Buy the Rocket Launcher

Kills 100 enemies with a precision rifle

Nail them

Burn them

Shock them

Complete the level without wearing the Special Gas Mask

Complete The Barge without dying on Nightmare difficulty

Kill 15 Worms or Maggots

Kill 200 Eyes

Pass through the Caves

Kill 500 enemies with the Old Axe