Retro Achievement for Twin Cobra

Too Easy

I'm Invincible!

Big Green Tank

Big Blue Tank

Rail Tanks

Gatling Tanks

Command Center

Heavy Tanks

Super Tanks

Rail Tanks Again?

Quad-Gun Tanks

Don't Drop 'Em

Killing Spree

Half Way There

Max Power Red

Max Power Green

Max Power Blue

Max Power Brown

Shooting Stars II

Shooting Stars III

Shooting Stars IV

Shooting Stars V

Bullet Dodging Expert

Expert Gunner

Deadly Cobra

One of Everything, Please.

Shooting Stars VI

Shooting Stars VII

Shooting Stars VIII

Crown of Victory

Shooting Stars IX

Shooting Stars X

Unstoppable