Dino Run: Marathon of Doom is a retro-styled, action-packed prehistoric dinosaur racing game. This version is an update of the original web game: Dino Run. Run, jump and claw your way to survive the oncoming wall of doom. Run, jump and duck with arrow keys. Shift key provides an boost every 20 seconds.AWSD and Arrow Keys Control your dino. Use SHIFT for a speed boost, which becomes available every 20 seconds or so. Eat critters and flowers for powerups.Much fun!Join now and have fun!