Insane Cancers are enormous, obese and monstrous humanoids. These abominations with hulking strength appear in Silent Hill 3. Heather Mason first encounters one sleeping in Hazel Street Station after she picks up a Shotgun in an abandoned train car on the platform 2. They also appear occasionally in Silent Hill: The Arcade and Silent Hill: Book of Memories. They explode after they are defeated in the latter, making them dangerous even in death. Insane Cancers are also seen in the comics Dying Inside, Paint It Black, and Hunger.