spoilers]Mettaton is actually the puzzle generator when you first see the colored tiles. : r/Undertale
Mettaton was present since we meet Sans and Papyrus? : r/Undertale
Making the Undertale Tile Puzzle - YouTube
Encyclopedia — Mettaton explaining the rules to the colored tile...
Undertale Part #8 - Dogbass
Tile Puzzle solution (in case you wanted to know!) : r/Undertale
Puzzle Color Tiles GIF - Puzzle Color Tiles Tiles - Discover & Share GIFs
Snowdin Puzzles | Undertale Wiki | Fandom
Undertale bomb puzzle, but with... Whitty? by PerilSpore on DeviantArt
Puzzle] [1.8] Dr. Alphys' Puzzle (from Undertale) in Minecraft Minecraft Map
Puzzles Guide - Undertale Wiki Guide - IGN
Undertale Character Puzzle Word Search - WordMint
Undertale (Pacifist) - Part #08: Hotland - YouTube
Dr. Alphys' Puzzle in Minec... - Worlds - Minecraft - CurseForge
Making the Undertale Tile Puzzle - YouTube
Undertale | Undertale, Undertale funny, Mettaton ex
Puzzles Guide - Undertale Wiki Guide - IGN
Hotland Puzzles | Undertale Wiki | Fandom
Try and solve this Undertale tile puzzle (rules are in the comments) : r/ puzzles
Semi Frequent Undertale Facts on Twitter: "* During Mettaton's Tile Puzzle, he mentions if you walk on a green tile you'll have to fight a monster, if you never walk on one