Board Thread:General Discussion/@comment-28684741-20160616162607/@comment-679780-20160626141110

N-n-n-not that easy. You see this "chip" that holds whatever the heck lets him do all the mechanical stuff is called thw Chaos Tap which absorbed all the residue chaos radiation on Mobius. Not only is it Dr. Robotnils source of power but also an apocalyptic bomb and last resort if Robotnik doesn't get his way in the end.

However Sonic and Knuckles did form a true to use the grey Chaos Emerald to syphon energy from the Chaos Tap.

StC Chaos Emeralds are rather interesting. The Master Emerald counts as one of the seven emeralds, thus there are six regular size emeralds and a seventh green chaos emerald thats larger and serves as the master. The gray emerald can absorb chaos energy as well which also changes it size. (The orange chaos emerald became cyan coloured to match modern colours, yet unexplained why.)