Slitterhead players face progression blocks requiring new characters to advance

In the game Slitterhead, players encounter progression blocks where they must find new characters called Rarities to continue the story. This guide details the locations of these Rarities to help players advance and unlock achievements. To find the Rarity named Edo, players should revisit the Lurking Parasite RE mission after completing the Insidious Sucker mission. Possessing a barking dog near a red taxi will lead to Edo, who must be rescued from monsters to join the party. For the Rarity Tri, players need to navigate the Hidden Cave RE mission and overhear a conversation through an open window. After defeating the Slitterhead attacking her, Tri will join the crew. Lastly, to find Betty, players must locate six Mysterious Old Ladies throughout the game and speak to them.