Retro Achievement for Metal Storm

Armor

Fireball

Shield Force

3...2...1...KABOOM!

Weapon

Green Mechanical Junk

Five Turrets

Laser Cannon Floater

Blasting Away Robots

Green Mechanical Junk V.3

Five Turrets V.3

Laser Cannon Floater V.3

Beams of Doom V.3

Transformer Defense Unit V.3

Whirling Modules V.3

Beams of Doom

Transformer Defense Unit

Whirling Modules

Green Mechanical Junk V.2

Five Turrets V.2

Laser Cannon Floater V.2

Beams of Doom V.2

Transformer Defense Unit V.

Ultimate Storm

Beyond the Cyber Space V3

Beyond the Cyber Space...

Whirling Modules V.2

The M-308 Gunner

Beyond the Cyber Space V2

Master of Gravity