[ASalazarMX]

That cannot be argued in this case. The author explicitly states that he made an interceptor that sits between the PC and a regular mouse, so the interceptor is the one running the game.

> [..] detached the USB connection from the inside of a cheap HP mouse and fed it into the XIAO's USB port (this goes to the computer). I then wire up the aux USB connection using the XIAO's power/GPIO pins, which goes back to the original mouse's PCB. This creates a USB interceptor that can be programmed to do whatever!

It would be like saying you're running Megaman from your SNES's firmware, which even if it has a bit of truth, most technical people would object to.