Perry crashed through the roof and landed right inside a glass cage. Before he could do anything, the hàng đầu, đầu trang of the cage closed, and Perry scowled. Doofenshmirtz had an uncanny ability to predict the exact place where Perry was going to break in. It was his one real skill.

He could see Doofenshmirtz on the other side of the room, adjusting a big Inator. After a few seconds, Doofenshmirtz finished what he was doing and turned around. "Ah, Perry the Platypus. How good of bạn to... Drop in!" He laughed manically for a second, then got down to business. "You know, I've told bạn a lot of backstories...