Alien Rage - Unlimited achievements

250 Kills With Melee

25 Kills Using Mech To Step On Enemies

80 Kills While Piloting Mech

Find all audio recordings

1000 Promethium Containers Destroyed

Reach a player score of 50,000,000

Complete single player campaign on Hard difficulty

500 Total Headshots

Unlock all player perks

Complete single player campaign on Normal difficulty

Use every weapon’s secondary fire mode

Kill an enemy with every weapon