(Today) Old GameCube controllers work with Switch 2 using GameCube USB adapter and dock. (April 2nd) New GameCube controller might work with non-GameCube games. (Today) New GameCube games won’t ...

Secondly, the original Switch’s GameCube controller adapter — which plugs in via USB port — will still be compatible with the Switch 2. Keep in mind, we have yet to hear any information ...