Rhythm Heaven Megamix (リズム天国 Megamix, Rizumu Tengoku Megamix) is a rhythm game developed by Nintendo for the Nintendo 3DS in Europe. The game is the fourth installment in the Rhythm Heaven series and features over 100 rhythm games. Players must press buttons or touch the screen in time with the music to complete each game. The game includes a variety of musical styles, from classical to hip-hop, and the difficulty increases as players progress. The game also includes a variety of minigames, such as a rhythm-based soccer game and a rhythm-based flying game. Players can also create their own rhythm games and share them with other players. The game also includes a multiplayer mode, allowing players to compete against each other. Rhythm Heaven Megamix is a fun and challenging game that is sure to keep players entertained.