Was looking through maplestory tv tropes page and apparently this was a thing · 10:27am Feb 23rd, 2015
I was just looking through MapleStory tv tropes page and Japanese Maplestory did a crossover with Puella Magi Madoka magica at one point. no I am not kidding: http://maplestory.nexon.co.jp/campaign/madoka-magica/
Damn it! If only I would read Japanese...