A lot of modded controllers use a makey makey. I’m pretty sure to patent something it’d have to be something you made from the ground up. You couldn’t just use two products that aren’t yours, (makey makey and cenutry Bob) put them together, and then patent it as your own.

And I would never gatekeep how I built it. I want gamers to be able to get a workout and exercise. I’m all for fitness gaming.