I have NO idea why no one has said "shieldgrab".
Diddy throws his bananas at you. If he throws one, shield his nanner (a perfect shield would be nice, but its not necessary), and then just execute a grab. Even if you feel you're gonna fail, if the Diddy's running at you trying to grab you or dash attack you, your grab is faster and has priority over his dash attack. All thats left for you to do is fthrow and catch the banana on the floor as you're falling, and BAM! Perfect counter. I've tried it and I've done greatly against Diddy mainers in my area...
Just watch out for diddies who get smart and start chucking bananas at you for shield pressure. You'll have to mindgame the shieldgrab if you're still going for it.
Of course, an air game will always be welcome in this matchup, but think of this as an... Alternative.
Diddy throws his bananas at you. If he throws one, shield his nanner (a perfect shield would be nice, but its not necessary), and then just execute a grab. Even if you feel you're gonna fail, if the Diddy's running at you trying to grab you or dash attack you, your grab is faster and has priority over his dash attack. All thats left for you to do is fthrow and catch the banana on the floor as you're falling, and BAM! Perfect counter. I've tried it and I've done greatly against Diddy mainers in my area...
Just watch out for diddies who get smart and start chucking bananas at you for shield pressure. You'll have to mindgame the shieldgrab if you're still going for it.
Of course, an air game will always be welcome in this matchup, but think of this as an... Alternative.