I don't really see any locks there, just a lot of back hair (I knew he had some, at least back in the old days, but I didn't think it was quite that much). It is pretty badly drawn, though, making it look like it's all over the place. Bottom of the hair is particularly bad, those big tuffs over the shell. Actually, Bowser overall looks horrible here. Thanks for reminding me that, as bad as the SNES game was, it's nothing compared to the embarrassing animation of the PC version.
But when I heard flowing locks, I thought of this (even though I had to create it first):