Welcome To "How To Make An Undertale OC" OR: HTMAUTOC. Okay, let's not call it that. This Is The First Part Of The Guide! There Should Be Another Part Or Two! We're Gonna Start With The Cliches! Hope This Helps!
Underale, A pretty awesome game- if I say so myself. And I don't mind OCs/FCs being in fandoms, it's what makes it fun and creative! So.. In a fandom where you can be practically ANYTHING.. There are a few cliches and bad OCs here are there (No- this is not aimed at anyone.) So, before we start, keep THESE things in mind when making a UnderTale OC!
1: In Undertale, monsters can be ANYTHING.. LITERALLY.. ANYTHING. You could be a HAND and no one would question it. Don't be afraid to step out of the "Making It Make Sense"