Rontivity is a free game for Android devices that is inspired by Material Design and looks simple, but it's hard to master. The objective of the game is to move left, right, up, and down and to avoid getting hit by any of the obstacles. There are four different modes to play in, each with its own difficulty.

How to play:

If you're playing on a smartphone or tablet, you can use the touch screen to move left, right, up, and down. You can also use the spacebar to move left and right. If you're playing on a computer, you can use the mouse to move left, right, up, and down.

The game will automatically save your progress, so you don't have to worry about losing your progress. If you die, you will restart the game from the last saved progress.

The game has a lot of different elements that are designed to make the game more exciting and challenging. For example, you can get hit by an obstacle and die. If you die a second time, you will get shot back to the beginning of the level.