According to most, Sir Mineswell is the entirely fictional gentleman skeleton mascot of the Whimsymines. However, according to a talking skull within This Ride, he is some sort of terrible Skull King.
In one room, Sinikka found an odd skull that tried to possess and abduct her, all while claiming to be the ‘true’ Mineswell.
After the skull was crushed by Abba Leno, the entity returned as a ‘Ghost Skull King’ to threaten The Party, claiming that they have ruined his plans to return to power.
Battle (Whimsymines): Killer Instinct 2013 – Theme of Spinal
Battle (Whimsymines): (Alt): Wind Waker – Phantom Ganon Battle
Dialogue – Casual (Post-Whimsymines): Undertale – James Roach – Fibulafight