Ribbon Chan is the female member of the Space Patrol Squad. She first appears in "The Biggest Bye'cha of All: Part One". She is a supporting antagonist in the movies "Dr. Slump: Hoyoyo! Space Adventure" and "Dr. Slump & Arale-chan Hoyoyo! Sekai Issuu Dai Race" where she and the rest of the Space Patrol Squad are subordinates of Dr. Mashirito. She is voiced by Eiko Masuyama.