Back in his ‘Fortriss uv Bizarro’, he used the duplicator equipment that had populated the planet to make a ramshackle clubhouse and a ‘Legion of Stupor-Bizarros'.
Bizarro-Chameleon Boy had the same powers as his original counterpart.
The Legionnaires went to Bizarro World to stop the madness created by the Stupor-Bizarros, but had to surrender when Bizarro-Superboy threatened to kill Superboy with a hidden kryptonite ray. When Superboy appeared, Bizarro ordered him to turn worthless diamonds into valuable coal or the Legionnaires would die. Superboy succeeded and the now rich Bizarro Legion disbanded. Actually, Element Lad had performed the transformation after Saturn Girl gave him Superboy’s idea telepathically.
The former Legion of Stupor-Bizarros never again troubled their heroic counterparts.