Dr. Goo 3: The Rubblebum War is a humorous side-scrolling game featuring Dr. Goo, a heroic glob of gelatinous, sticky green stuff. The Rubblebums are a vicious alien race, who have been prevented from invading Earth for centuries by the protection of the Blue Galactic Stars. These stars contain a special stardust that is lethal to the Rubblebums. Finally, the Rubblebums have discovered a way to invade Earth by destroying the stars. Using their Super Rubblebum Bubblegum gun, they have started to shoot these stars which are falling to Earth. Dr. Goo has been asked to collect the fallen stars and put them back in their place, thus preventing a full-scale invasion of earth.You can use the arrow keys to move Dr. Goo and use the Shift key to make him jump. But watch out for firing cannons and enemies. Because he's sticky, Dr. Goo can hang from ceilings and walls until danger has passed.