This chest can only be obtained by defeating the Mothership UFO.
| Picture | Name | Use |
|---|---|---|
 | Alien Armour | The Alien Armour reduces damage taken, restores Alien Tech Energy when hit by melee attacks, and emits a glow. |
 | Laser Sword | The Laser Sword functions like a Spear or Katana but deals more damage to aliens and emits a subtle glow. |
 | Laser Cannon | An upgraded version of the Ray Gun that deals more damage and can hit multiple enemies, but consumes 70% Alien Tech Energy per shot. |
 | (1) Diamond | An item used as currency in the lobby, Diamonds can be spent to unlock various Classes that assist players during their runs. |