Gu Goomba

Gu Goombas are creatures in Super Mario RPG: Legend of the Seven Stars. Mario and his party first meet this variaton of Goombas in Bowser's Keep. Gu Goombas are just like regular Goombas, except being much stronger, and green in color. Interesting enough, if Bowser is fighting alongside Mario, they will not attack and instead flee. It is possible that Gu Goombas could be an earlier form of Hyper Goombas.