If you'd like to use the Wii U Gamepad as a controller, we recommend setting the controller injection option in UWUVCIAO to "Force Classic Controller"

Note: You will be unable to play Puyo Puyo Climb without a Wii Remote, but the entirety of the main game will be playable

To disable Gamepad controls and use the Wii Remote, you can use the plugin "Wii VC Launch" via the homebrew app store

https://hb-app.store/wiiu/WiiVCLaunch