Earth Defender HD - Protect our home planet from the aliens, classic arcade game app for iPhone and iPad

Let this game take you back to your childhood years of playing classic arcade games. An unknown specie of aliens have attacked and taken control of our space colonies! Now the only safe place for humans is our major space colony Chromos and our home, planet Earth. Your job is to destroy all incoming enemy ships and protect our home planet. It is up to you to fight back against the evil aliens and claim our independence. Utilize your device motion sensors to move your space ship around space, tap on the screen to launch missiles and activate your ships protective shield by tap and hold with two fingers on the screen. Collect additional lives and repair your ships shield by collecting perks around space!