The Retro Fighters Battle Dock is an accessory designed to add GameCube controller support to the Nintendo Switch 2 (and original Switch) by serving as a shell that houses the console’s existing dock. It features four GameCube controller ports on the front (styled to resemble a GameCube, complete with a decorative memory card slot) and two USB-A passthrough ports on the side. The Battle Dock connects via a USB-C to dual USB-A cable, with one cable handling data and the other providing extra power for all four ports. It is also compatible with PC, Raspberry Pi, and MiSTer, where controllers are recognized as Xbox 360 devices. Retailing for $44.95, it was released in 2026. Independent lag testing shows input delay between 2 and 20 milliseconds, which is comparable to the Nintendo Switch Pro Controller’s typical latency and should be adequate for most gamers.