Rich Brown hurt my understanding of the diddy matchup, I'm not sure what to think of it now
Edit: that wasn't Rich Brown or I can't find the match
Another edit: it was wadi
Rich Brown played Zero last weekend at the invitational and their set was 2:3 (Zero won).
Only the last game was convincingly in Zeros favor.
I've always felt Mewtwo was actually good in the Diddy MU personally. Before that one tournament I had won in germany a whiiile ago and beat cyve I wasn't really confident with my Luigi and had it not gone well Mewtwo would've actually been my counterpick for the MU. I also told cyve later that I think Mewtwo is really good against Diddy, but we didn't have time to play the MU.
Imo Mewtwo can feel really safe against Diddy Kong. Dtilt to outrange Diddys ground options so you don't have to come too close to him to be hit by his own dtilts (just keep your distance if he has a banana), Shadow Ball to pressure (Diddy often has to approach, and even if he's trying to avoid Shadow Balls from a bit of a distance Mewtwo can follow up a charged SB since it'll eat shields to limit his options), and good KOing options. Diddys killmoves are pretty scary for Mewtwo, though.
I still haven't seen any Mewtwo trying to go ham on Diddys recovery (maybe WaDi does but I don't remember)... nair beats Diddys upB pretty much every time and then he could be as good as dead (especially if you manage to drag him down with it), and even if it would trade it wouldn't be much better for Diddy. Though it can be a bit difficult to get him offstage into these positions in the first place.
Rich Brown seemed to have a good idea of what to do, though. It's so weird to me seeing people flip out over Mewtwo beating Diddy (Zero), since it really doesn't feel like a bad MU to me at all. Abadango is really agressive in the MU for whatever reason. He doesn't try pressuring with charged Shadow Balls, only small ones and dashes in a lot. Even his combos only recently got better against Diddy. Mewtwo's have been pointing out Abadango not playing the MU correctly since the whole "Diddy beats Mewtwo hard"-train too.
Though I've read in this thread that Mewtwos are complaining about the super bad MU lately.. surprisingly to me, but not sure which ones those are.
Diddys fair walls can be annoying for Mewtwo, since it's so big. His kill-options are always scary, and even hoo-hah can work and KO Mewtwo sometimes, but overall Mewtwo does fine in the MU. Don't think it would be worse than -1.
Also lol@ Mewtwo or Diddy not having any losing MUs...... they don't lose any badly, though.