the mystery of "centipede.sb3"

howdy-hoo!! i decided to move all the investigation on centipede.sb3 to here to hopefully get more attention on this so we can get more help. please, if you have any clues on where to find this game, do not be afraid to tell me!

here's the original thread for more context:

https://forum.spacehey.com/topic?id=171429