They did the MONSTER match! (regexes in Scratch)
Enter a word to check whether it is a valid British spelling of "color"! Possible spellings include "colour", "coloouuuouoouur" and "colr". That is, it's the regex col(o|u)*r.
Bonus points if you can find another (secret) word that this FSM accepts. Eternal fame if you can find 2 such secret words.
The lively companion to https://hardmath123.github.io/monster-match.html
Made with tosh—I'm a tosh hotshot.