One of the top-grossing apps of all time, Doodle Jump remains as compelling as ever. Tilt your phone to guide the adorably-long-snouted Doodler as he climbs a piece of graph paper, all the while dodging black holes, shooting monsters, and picking up goodies. Between the game's range of colorful winter, jungle, space and graveyard themes and its lack of a finish line, Doodle Jump is tough to quit.