Rhythm Surfer is a free music game by RICE BALL available on Android. It's a rhythm reaction game that uses only one finger, making it easy to play and enjoy. The game is set in a fantasy world where the Evil Duke has trapped all the melodies on earth in his tesseracts. Your mission is to put on your headphones, step on your hoverboard, and save the world of music.

The game features a variety of music song packs, including EDM, RAP, and POP. As you conquer levels, you earn more songs. The game also allows you to assemble your DJ appearance with all sorts of cool DJ helmets and hoverboards for you to customize. The neon dusk scenery adds to the overall fun ambiance of the game.

Overall, Rhythm Surfer is a fun game that's easy to play and visually pleasing. It's perfect for music lovers looking for a new way to enjoy their favorite songs.