Mad Cultist

Mad Cultist is one of the most unnerving boss encounters in Mouse: P.I. For Hire (2026), the rubberhose-style first-person shooter developed by Fumi Games and published by PlaySide Studios.

Who Is the Mad Cultist?

Set in the corrupt 1930s city of Mouseburg, the Mad Cultist is a deranged follower tied to a dangerous occult operation that protagonist Jack Pepper, voiced by Troy Baker, stumbles into while investigating the mysterious scientist Steve. The cultists in the game serve a shadowy figure known as “Ze Professor,” carrying out brutal work connected to a portal and the disappearance of shrews across Mouseburg. The Mad Cultist stands out as a full boss encounter, unleashing chaotic energy that fits the game’s manic cartoon aesthetic.