Tako

An Octo is a small orange octopus, similar to the squid-like Blooper. They have only appeared in the game Yoshi's Safari. During the events of the game, Octos aided Bowser and his Koopalings during the subjugation of Jewelry Land.

Mario and Yoshi encountered Octos in the fourth level of the Light World, Crescent Coast. While traveling underwater, the two heroes had to fight off an assault from these weak creatures. The Octopot, a giant jar-like creature, launched wave after wave of Octos at Mario and Yoshi. Fortunately, the small cephalopods could be easily destroyed with a couple blasts from Marioâ€™s Super Scope. After shattering the Octopot, the Octos disappeared with their creator, never to be seen again.

Come Back?
King Magma Blooper from Super Mario Galaxy bears a resemblance to the Octos.