Legendary flash game "Cube field" is free on app store!
The game has 6 different themes and getting accelerated by time. There are two control methods;
Keyboard: There is a. hidden keyboard on the half of the screen. Just press left or right side of the screen in order to move the character.
Accelerometer: Just tilt your phone to the left or right side in order to move the character.
Just take it easy, relax and if your get stress, you will probably crash into the blocks. Being relaxed is the key point on cubefield game.