Fame Checker

The Fame Checker is unlocked after you beat the bonus stage in World 0. You view all the information about the characters.

Supernanny: The Theory of Nicole
Plankton, Sophie, and Catherine must defeat Anna. They must also go to the bonus stage and rescue Kayla within the time limit, or else she dies and you will not get the Fame Checker along with the plushes due to the game ending.

Supernanny: The Theory 2
Nicole must defeat Bryce. She must also pass the bonus stage within the time limit in order to get the Fame Checker. But don't worry, even if the time runs up, the game will not end, but you still won't get the Fame Checker.