Carmen Sandiego season 3: Zack disguise as a museum guide

Zack and Ivy are masters of disguise. But one thing it's clear Zack have a unique way to do it.
I said once and I said again: I think Zack doesn't show all his potential because until now he test Carmen, Player and Shadowsan. But Ivy will continue to tey to copy Carmen that will make him to be more protective with her.