Was this made for TOFA 2011? I thought the theme of that was dividing by zero. There were certainly a lot of cartoons made about it. I'm not that familiar with Fullmetal Alchemist, BTW. Of course, this was still a nicely done cartoon. I do think it was a bit too short, though.
It was nice to hear that Japanese music at the end. Listening to other culture is always good. The artwork was quite good in this. I really didn't know what would happen. Maybe I should have looked at the menu page, though.