Space Cadet Defender HD: Invaders is an arcade/action space shooter game available on iPhone. In this game, players must defend Earth from the invading alien horde. With high-definition retina graphics enhanced for the new iPad and iPhone, players can immerse themselves in the fast-paced and exciting gameplay.

With over 150 unique levels to conquer, players will face challenging enemies and bosses as they progress through the game. To aid in the fight, players can enhance their ship with powerful upgrades and utilize unique powerups to gain an advantage. The game also offers high scores via GameCenter, allowing players to compete with others for the top spot.

The storyline of the game revolves around the threat of alien invaders sent to destroy Earth. As a space cadet, players are called upon to repel the attack and save the planet. Strategy and upgrading the fighter ship are essential to defeat the increasingly advanced aliens and their powerful overlords.

Get ready to embark on an epic battle to save Earth in Space Cadet Defender HD: Invaders. Suit up, cadet!