The Video is from Europe MapleStory Kradia server where i play in Patch: 0.83.1 "Darkness" (Legend Part3 basicly).
A very uncommon boss in Maple and not many videos on youtube about it. Zipangu boss Black Crow got 35m hp and is level 115, bad exp vs hp but it's still worth it if you can find a few of these. You might get lucky and find a StoneTooth which is worth a ton!
http://www.youtube.com/watch?v=UuxB2E4h6YA
November 22, 2012