Doodle Jump is an electronic game developed and published by Lima Sky for iOS, BlackBerry, Apple iPod touch, iPad, iPhone, Android, and Nokia Symbian. It was released worldwide for iOS on April 6, 2009, and was later released for Android and Blackberry on March 2, 2010 and for Symbian on May 1, 2010. Since its release, the game has been generally well-received. The game was inspired by PapiJump, from SunFlat, with similar gameplay. On June 25, 2010 it was announced that the game had totalled over 5 million sales. It has been reported of having 28,000 downloads per day.
Gameplay consists of guiding a four-legged creature known as "Doodler" up an unending series of platforms without falling in an attempt to gain a high score. The character is controlled by tilting the gaming device in the desired direction. The greater the angle, the greater speed. In the BlackBerry version, direction of the Doodler is determined by tapping in the desired direction.
Gameplay

Obstacles and power-ups
Obstacles
There are several obstacles the Doodler must evade in the game:
- Monsters – There are many different types of monsters which the Doodler must either shoot, jump on top of, or pass by. Watch out for Monsters that the game says not to shoot. Monsters may be stationary but some variants move around the screen. Some monsters require the Doodler to shoot it more than once (two, three or five times) to kill it, however jumping on any monster kills it instantly. If the Doodler touches any monster except for jumping on it, the game ends. The monsters can be different in different themes.
- UFOs – UFOs abduct the Doodler when it jumps underneath them into their beam, ending the game. These can be shot or jumped on to be eliminated. The UFOs can be different objects in different themes.
- Broken Platforms - Landing on a broken platform is equal to falling through game space, as the Doodler will fall through them and fall down.
- Black Hole - The Doodler will be sucked into the black hole if it jumps in front of it, and the game ends.
- White Platform - Disappears when jumped on.
From Wikipedia.