She decided to be confusing because she realized he was the villain that she had heard of. "Sie müssen Rouge Fledermaus sein, ich bin Kleine Maus, ich habe von dir gehört" She spoke in fluent German to confuse him. She thought that if he didn't understand what she was saying that could make him confused. Also her German is better than her English. She stood there with a smirk quietly.

(Translation: You must be Rouge Bat, I am Tiny Mouse (remember her hero name is that in German), I have heard of you)