As Gunstar twin Red or Blue, defeat Colonel Red’s army to keep him from activating the Mystical Gems and destroying planet Gunstar 9…As protectors of the planet Gunstar 9, the Gunstar Red and Blue twins must defeat Colonel Red and the Emperor before the evildoers can bring robot Golden Silver to life and destroy their beloved galactic home. Guided by Professor White and their sister Yellow, the twins race around in mining carts and space ships blasting at the enemy onslaught through seven chaos-filled stages. This means WAR!360-DEGREE SHOOTING As you run through the explosive side-scrolling levels, point and fire from any angle, even backwards over your head. LOADS OF ENEMIESCarrying two to four weapon types, unleash 10 different attacks on enemies and over 25 Boss battles.TWO-PLAYER ACTIONTake on the unfriendly fire of Colonel Red’s army with a friend (Bluetooth required – available only for 2nd generation or better iPhone & iPod touch and 3.x OS)