I do see a bunch of these errors in the javascript console:
index.js:467 ERROR: Error calling from signal 'button_released' to callable: 'XRController3D(xr_controller_input.gd)::_on_button_released': Method expected 1 argument(s), but called with 2.
I think I got the mechanic, but I couldn't reliably recollect the time energy. It sure seemed like I was holding my hands in the correct position but I'd just spill more overlapping ghosts instead of recovering them. Tried the level with the two wheels a few times but couldn't complete it . I think it's a good mechanic with some tuning though; I can definitely see how you can build clever puzzles with hand path retracing. Good set dressing and voice acting too.