[The_Pimp_NeonBlack]

There is a muscle growth and GTS in the CGI series of Jimmy Neutron: Boy Genius episode Win Lose KaBoom.
It's in the last half of the piece when the alien gameshow Prize Lady (do not know the correct term) grows to battle Jimmy Neutron and his friends.

Impressive for the fact it is a full CGI render of the growth, even though there is little defination.

Peace
The Pimp NeonBlack