Much like but not completely like Gigagrow http://www.furaffinity.net/view/11046066/
BiG Bon can shift sizes, only he gets fatter with just a little muscle and has to use a dial to shift sizes, naturally he is main enemies with gigagrow
He is a bad guy.
Main weak points are his dail and tube distrubutor for the chemical that makes him big
And his weight in some intesence like being tripped and such,
The taller he gets the fatter he gets depending on the chemical flow he puts on
Welp enjoy