Take a minor detour in the megavents

Kill a Necromorph with every Weapon in the game (single player only).

Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface

Kill 4 enemies with the same Ripper blade

Simultaneously have four completely upgraded weapons

Complete the game on any difficulty setting

Destroy the Marker

Upgrade your RIG and Stasis completely

Upgrade 1 Weapon completely

Snare the Shard with the Ishimura

Kill a Brute without taking damage

Complete the Solar Array Puzzle