Wow, that was quite impressive. It reminded me of "One Piece'. Oh yah, that is where it came rom. I KNEW it had to be from there! It was great to see this animation style. It's very authentic to the anime. I'm not quite "that" familiar with FMA.
I can still recognize great tributes to it and everything. This told a good story. It's hard to believe this was part of a Oney Plays video. It didn't seem to involve actual gameplay. Either way, it was enjoyable.