Here Are The Controllers Supported In Super Smash Bros. Ultimate
Nintendo has announced the controllers that Super Smash Bros. Ultimate supports on Nintendo Switch.
Players can play Super Smash Bros. Ultimate with any GameCube controller released by the company, including a new Smash Bros. Ultimate controller launching this December. You can connect up to 4 GameCube controllers via the Wii U GameCube Controller Adapter to the Nintendo Switch dock.
The game is also compatible with Nintendo Switch Pro Controller, Joy-Con, and single Joy-Con (played horizontally).
Super Smash Bros. Ultimate arrives December 7, 2018 on Nintendo Switch.
Source: