Octo-Swoopin' Stu are a sub-species of Swoopin' Stu in Super Mario Island that created by Paintoombas. They do not differ that much from normal Swoopin' Stus. Octo-Swoopin' Stus appear only where Painttombas that create inky goop appear. They do not appear where Painttombas create fiery goop, as Fire Snakes appear where the Painttombas create fiery goop. The only difference is that they only come in transparent black, transparent dark gray, and transparent light grey colors.