SMB The Movie Characters - Goomb, Koop and Planty

Here's Bowser's minions before Jeff, Hal and Steve are joined in Bowser's crew.

So I name those minions are Goomb the Goomba, Koop the Koopa Troopa and Planty the Piranha Plant.

Those three are advanced team, but just only appear in Super Mario Bros The Movie and they are referenced only in SMBGT.

Enjoy it!