Kill 50 enemies using the Flamethrower

Find the Peng treasure

Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up

Kill a Cyst by catching its Mine and throwing it back

Kill 4 enemies with the same Ripper blade

Kill a Stalker with the Seeker Rifle while in Zoom Mode

TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface

Complete the game on any difficulty setting

Destroy the Marker

Complete the Drill Ride

Kill 50 Necromorphs while they are in Stasis (single player only)

Snare the Shard with the Ishimura

Destroy the Tripod Nest