Monster Imposter : Season 2 Episode 7

Nukus has Les create Chameleon Monster to capture Flabber and steal the power of the BeetleBorgs. Chameleon appears at Hillhurst as Flabber, and traps the real phasm inside a bottle. The kids transform into bugs to watch Chameleon Monster morph back into his evil self. When Chameleon tries to make his escape, the kids transform and send him back into the comics, then rush to release Flabber from the bottle.