In the game Nuclear Throne, what organization chases the player character throughout the game?

In the game Nuclear Throne, the organization that chases the player character throughout the game is The I.D.P.D. The I.D.P.D. stands for Inter-Dimensional Police Department and they are relentless in their pursuit of the player character because their main mission is to maintain order across dimensions and eliminate any threats to the stability of the multiverse. The player character, being a mutant, presents a potential disruption to this order, which is why they are pursued by The I.D.P.D. throughout their journey in the game.