Roper is a platform game where you use a single tap to control a running figure through many levels with cliffs and obstacles.
Your figure runs on its own, and the only time he stops is when he hits something solid or a wall. Tap and jump at just the right time to keep your figure running in the right direction. Tap again and hold to use the brown circle to swing off of the platforms. You have to get all of the coins in the level for it to be over.
Have fun and good luck!