Lore: A normal character got trapped in a maze game, then dying to a killbrick and returned to the world as a half character half soul. He vowed to get revenge on the game that trapped him, training every day before obliterating it with a energy blast. His hatred for maze decks skyrocketed, and he destroyed every last one. He was binded to Castle after an incident, creating a shield of the shards of his broken soul. He tried to end his life by entering a neutron star, but it infused with his body with it, multiplying his strength tenfold.

that music is familiar from a game (also the name)