Help phineas and ferb get rid of the cookie monster that lives inside isabella's closet. as a secret agent, put on your best hat, enter the house and act discreetly but effectively! collect the items that you need and use them wisely. many clues are hidden around the level, take the time to analyze all the elements that surround you and you will find a track! click on the floor to move and on the persons or objects to interact!
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