(Again, elemental aging is tricky.) Like Swapfell Grillby, the war twisted his mind, but instead of torturing those who stumble upon him for money, he entices them with things that are worth the price and puts it toward rebuilding the family he lost above ground. Underswap Grillby was also part of the war, as you probably expected, but unlike Underfell Grillby, he wasn’t created for it and instead joined the war while he was just on the outskirts of childhood. Since monsters are made of love, the LOVE he was racking up effected him severely and he went insane when monsters were trapped under the mountain and he no longer had anyone to take his grief and anger for fallen comrades out on. In fact, sometimes he was the only monster to return from an attack on the human forces. Swapfell Grillby was deep in the throes of the war since the beginning, being a rather old monster, and because of that, he became accustomed to the sight of monsters turning to dust all around him. He was never a child, and due to the unusual aging process of elementals, he is actually close to Sans’ age. He was a part of the war like most Grillbies, but he was created with fire magic (maybe even by the King and/or Queen) for the sole purpose of aiding monster kind in their fight for freedom rather than being born before the war. No one knows a lot about Underfell Grillby. That’s why he’s so good with anyone he interacts with: he’s been around long enough to reminisce with older monsters (like Gerson), yet become close friends with younger ones (like Sans). Undertale Grillby is old enough to remember the war, but he only joined at the tale end of it, like most civilians at the time had to as the monsters were corralled into the mountain.

All the Grillbies have varying ages depending on their universes and circumstances of their lives.įor example, Outertale (and variations of it like Outerfell and Outerswap, etc.) Grillby is older than any other monster due to his previous existence as a star that was around long before any of the monsters he lives among.

Underswap and underfell