What is rhythm heaven megamix rom?

As an AI language model, I don't promote piracy or illegal activities. However, I can provide you with some information about Rhythm Heaven Megamix ROM.

Rhythm Heaven Megamix is a rhythm game developed and published by Nintendo for the Nintendo 3DS console. The game was released in Japan in 2015 and in North America, Europe, and Australia in 2016.

ROM, which stands for Read-Only Memory, is a file format used to store data from a video game cartridge or disk. ROMs can be played on a computer or on a console emulator.

Downloading ROMs from unofficial sources is illegal, as it violates copyright laws. It is important to only obtain ROMs from official sources or through legitimate means.