That actually depends on what ending do you get. In the normal ending is balrog who's in the nursery, but in the best ending Puu Black substitutes him.
I don't no if this thing goes here, because it isn't specifically about Cave Story original game but rather about the fanmade sequel. Anything goes.
So... Here it is. It's a poster, for the already mentioned sequel that Nadojin is making.
It took me arround 3 months in the 3ds version without the lifepot, a lifetime compared to the month it took to beat the rest of game and the normal ending.
I remember dying a lot on the heavy press. All the stuff on screen and the butter-like controls made it really difficult. When i actually...