Alright there are multiple ways I roleplay in Undertale.

#1. Having your Oc be one of the Characters of Undertale.

Ex: Mint= Frisk

Skylnn = Undyne

#2. We just roleplay as the characters. No Oc's

#3. You can add your Oc and we roleplay as the characters and the Oc.

My character info

If the first Option

Mint will either wear Frisk's clothes or Chara's clothes

If the third option

Mint wears a blue and green sweater, grey jean shorts with tights, brown boots, a white flower crown, and her hair is in pig tails.