Wondering if the Xbox 360 controller you have will work with Polycade (or any Windows pc)? Read below:
Xbox 360 (wired)
Just works
Xbox 360 (wireless)
Xbox One (wireless)
Early generation does not have bluetooth. Uncertain if it works with the adapter above.
Identify:
Xbox One (wireless)
Later generation has bluetooth & just works.
Identify:
Xbox Series X controllers
The best option. These just work.