Except you can't force MK to come to you. =P
I will say that at not-highest level (which is the level most Zeldas play at), MK is..... not hard at all imo. But once he learns the MU and how to play like a d***eating *******, prepare to be extremely frustrated once he gets any sort of lead (& that's almost guaranteed to happen).
Zelda cannot beat his planking.
Zelda cannot beat his aircamp.
He has a fair amount of moves that're safe for him to throw out and bait with while we have...... pretty much none.
It's another one of those matchups where you really need to stay ahead by whatever means necessary, which most of the time relies on the other player making a mistake at the beginning of the match -- be it starting off too aggressive, trying something risky, making a technical mistake, or whatever.
Oh, there's always tripping too. =D