Where do you go to recover your password on Poptropica?

If you change your passWord, it just changes it.

THE NEW PASSWord RECOVERY FEATURE for Poptropica

Beginning in May, 2010, your Poptropica username(s) can be linked to an e-mail account. This is not required to use Poptropica. However, only accounts that have an associated e-mail account can recover a passWord. This is an extension of the "parent e-mail" which is used to purchase credits or merchandise in the Poptropica store. You should not use this feature without parental permission.

Unlinked usernames cannot recover their passWords if they are lost.