Megaman Battle Network 4 Easter Egg - Mayl Giving the Finger?

OK, we all know that in every game of this series, the area changes, and the posters for it change with every version, and sometimes file. Now if you get the blue moon version, if you're lucky enough, look at the poster behind Lan's bed. It is actually a picture of Mayl, and now look at her hand: She's giving the finger!