This Demo version only includes Earth and Mercury. Get all 8 planets, an additional play mode and 6 different backgrounds in the full version.Unlockable content in the full version:Venus, Love Struck power Mars, UFO attack power Jupiter, Gravity Crush power Saturn, Planet Teleport powerUranus, Sky God powerNeptune, Space Typhoon powerPlus beat the full version and Pluto appears as an enemy in quick play mode.Additional Back Grounds in full version:Solar BloomMilk Chocolate Thick Red and BlueLemon LimeGray MatterIce FieldPLUTO's Story,The 9 planets were a close group of friends, but Pluto always felt a little like the ugly duckling. He was nowhere near as big as Jupiter, and though he wasn’t much smaller than Mercury, at least Mercury had the distinction of being first and the closest to the Sun. Meanwhile, Pluto was overshadowed by his gas giant neighbors at the edge of the Solar System.Then in a secret meeting of the planets that did not include Pluto, it was decided that Pluto should no longer be considered a Planet at all. Earth was primarily responsible for the decision, saying that the definition of a planet should be made more rigid for scientific purposes*. Earth was the thinker of the group. At first, Venus and Saturn felt bad about the decision, but then they thought Pluto might actually feel better if he didn’t have to try so hard to live up to high planet expectations.Well they couldn’t have been more wrong. Pluto took the news very badly and decided that he would declare himself ruler of the Asteroids and set out to teach the Planets a lesson. “Perhaps a show of force will convince them that I am more than worthy to be a planet”, Pluto thought.Your mission, should you choose to accept it, is to use a combination of four unique weapons to assist the planets in warding off a hail storm of asteroids. You will also wield the individual powers of the planets themselves. And beware, aside from Pluto’s plot, Mars has decided to start his own take over and sends a flying saucer fleet against the solar system. If you can survive to the end you will face Pluto in a final battle royal.So get set and get ready to smash, repel, teleport and zap away at UFO’s and asteroids in this chaotic clash that will transport you from your own planet all the way to the edge of the Solar System.*See the International Astronomical Union for details.