Last few gos on the ship ive been trying to kill everything but cant find every enemy. Total kills 305 from memory. Maybe ive missed an odd fish, creeper or puffer. Im sure ive found every key.. its a lot of fun with my killer PSG1 with 4 slots, damage 6, autoload, gluttony, full burst, and cornucopia 3 on the P90. Favourite parts defo prom, bridge, lab areas, deck. Total ooze fest.