The Hero has to enter the bank to meet Copy Cat and wait until she is done copying herself about ten times. You have to act fast for this capture, because she throws a canister of smoke. There is a second floor and the last Copy Cat you find is the real one.
After the events of Super Power Island, she and the other Super Power Island villains were transferred to Erewhon Prison. Like all the other prisoners, she wasn't happy about her prison transfer. In the bonus quest, she and the other Superpower Island villains hold a security guard hostage in a cell.
Her grey skin hints that she might be based off of photocopier machines.
Copy Cat in Erewhon
Copy Cat in prison, Super Power island.
A poptropican watching Copy Cat escape by cloning herself.
Copy Cat gloating in the bank in Super Power island.