Mujiro is a large yellow character shown in a video at Vasectech Vasectomy Systems in "Iced, Iced Babies", Mujiro appears in the video with Kichiro a smaller pink character
Mujiro has a cameo with Kichiro in a crowd in Steve's imagination in "Toy Whorey" as he prepares his toys for battle against Stan.
Mujiro is voiced by Matt McKenna.