Hard bike - Dua Xe Dap is a free game available on Android that challenges you to control a unicycle and move it forward safely. The game offers two play modes: Time Mode and Distance Mode. In Time Mode, you must guide the bike to the finish line in the shortest time possible. In Distance Mode, you must control the bike to go as far as possible.

To play, you touch the left side of the screen to start and go back and touch the right side of the screen to go forward. The game also offers a practice mode to help you learn how to play.

Overall, Hard bike - Dua Xe Dap is a challenging and fun racing game that requires skill and precision to master. It offers a unique and exciting gameplay experience that is sure to keep you entertained for hours.