Press 1 to toggle invulnerability, 2 to toggle infinite armor, 3 to toggle infinite ammo, 4 to add money.
Take on the extraterrestrial threat with an armoury of weapons, massive Mechs and complete missions in space. Unlock new weapons and armour and kit out your Mech with explosive force. Choose from multiple difficulties or take on a new challenge online with multiplayer.
Use your keyboard to move and mouse to shoot.