Polymega is a home video game console developed by American company Playmaji, Inc. It is a retro gaming console offering backwards compatibility with several CD-based and cartridge-based platforms: PlayStation, TurboGrafx-CD, Neo Geo CD, Sega CD, Sega Saturn, Nintendo Entertainment System (NES), Sega Genesis, Sega 32X, Super Nintendo Entertainment System (SNES), and Nintendo 64. It includes a built-in CD drive, while separate add-ons known as Element Modules provide support for cartridge-based games.
It was announced as the RetroBlox in 2017 and faced numerous delays before being released in September 2021.