Though COH never got any powers with size-changing, or allowed extra small character, it hasn't stopped players from creating characters that follow in the inspiration of Hulk, Wasp, etc. Other than using the existing body size option, and switching between costumes, what do people use to role-play out characters who are larger or smaller than the original COH designers had in mind?
Also, if you're a fan of these characters archetypes, there's a Discord chat that covers a range of games including CoH as well as other media for inspiration such as movies and comics at https://discord.gg/87Jd2Hy