NinJump is Backflip’s most recent fun and free game. Backflip Studio had brought other successful games such as Ragdoll Blaster and its sequel, Paper Toss, Tunnel Shoot, etc. This new game is very simiar to Ninjatown: Trees of Doom where you climb either sides of the screen like a ninja. When you tap, your ninja will jump from one side to another, swing his sword to attack obstacles in his path. If you attack three of the matching things in a row, you will gain power up and rise higher.
In this game, you climb as high as you can and submit your scores using OpenFeint powered leaderboards and then play it all over again. If you want a casual and simple game, you should give NinJump a try.