Doodle Jump

In Doodle Jump, players must guide a four-legged creature called "The Doodler" up an endless series of platforms without falling. The left side of the playing field wraps around to the right side. For devices with an accelerometer, players tilt the device to move the Doodler in the desired direction.

Players can retrieve power-ups such as propeller hats, jetpacks, rockets, springs, trampolines, and invulnerability shields. There are monsters and UFOs that the Doodler must avoid, shoot, or jump on to eliminate. Aiming is performed by tapping on the screen, but on the Android and Windows Phone versions, there is an automatic aim mode. Depending on the game mode, projectiles may fly in a straight line off the screen or be affected by gravity. The game ends when the player falls to the bottom of the screen, jumps into a monster, gets sucked into a black hole, or is abducted by a UFO.

Igor and Marko Pušenjak are the authors of Doodle Jump; Igor works from a New York–based address and Marko resides in Croatia. In July 2016, Lima Sky announced a partnership with Skillz to develop a tournament-playable version of the game.

Doodle Jump has received favorable reviews from critics, with TouchGen mentioning the fact that the game is "fun as heck" and also praising the sound and cartoon graphics which they feel give the game charm. The review ends by saying that the game is a 'joy to play' and that it's obvious that a 'lot of love went into this game'. Tom Love of Pocket Gamer called the game "unbelievably addictive, immediately accessible, and enjoyable every time you pick it up". It currently holds a rating of 85.00% based on six reviews on GameRankings.

The Doodler has made cameo appearances in several other iPhone games, such as Parachute Panic, The Creeps, Finger Physics, and Pocket God.