Very minor bug, if you have the black hole skin at the start, the black hole effect cuts when you collect the first stamifly and you're left with the glass marble minus the particle trail. Re-equipping the skin fixes it. Honestly, it's a cool look.
Also, it's possible to clip out of the map on the lower left corner of the main map. The marble carries on forever and a forced respawn is necessary for recovery.
Thanks for the cool game!