though we did get a notable amount of posts in the previous mu thread
Ha. more people need to post, rather than just me and that helpful mk main. the other 2 posts were questions..
i will try write one up for this in 2 days
You need banana control, duh. SH>z-pickup>throw is very good and quick.
learn to airdodge so that you pick up the banana as you land.
learn to infinite if you seriously need it.
you can DJC with the throw of a banana, a useful trick.
essentially however as soon as you get dat nana the safest thing is to throw it offstage.
If the diddy nana's your shield, a retreating nair is probably your safest option.
reflect if you're feeling lucky.
Ness' double aerial shuffle is very goo in this MU for catching bananas as theyre thrown at you.
you want your fairs to be mainly defensive, as his fair will trade with yours (not good). spacing this will make you hard to approach (without bananas ofc)
Pk fire is risky, as it can be punished with a banana quite easily or a fair if its not retreating and lag cancelled.
grabbing and keeping diddy above you is what you want in this match. getting him off stage then edge guarding him is probably the best position to be in.
getting in close to diddy and utilising your quick grabs and SH aerials is very advantageous. dair dance if you suspect barrel roll approaches.
rack up % in this, getting the first kill is vital. once that happens, camp. he can approach with bananas very well.
for this reason the best stage is probably SV (PKT on the platform)
sorry i dont know much more, just gameplay tips rather than something more detailed such as my MK post. i usually play lucas (i feel he does alot better with his dair, bair and uair) in this matchup, and you can acutally camp with Psi fire as it will not collide with a banana but rather send it up into the air and continue to hit diddy. ive only played diddy kong like 5 times haha. this is pretty much theorycraft, and will be pretty hard to follow 100% ingame. dont let diddy get to your head!