One of the most popular games for Android is this game called Color Jump. It's a simple color game wherein you must assist the colored ball through each obstacle before attempting as many color changes as you can. It's the perfect way to pass the time wherever you may be.

To get the color to leap, you must tap the screen. It crosses the obstruction in the same color and then comes to the station where colors are switched. The color ball has the opportunity to alter and continue moving. Your score can then increase the more challenges you overcome.