The most noobish noob thread ever..

the move you're probably r talkin bout is dash forward + 2 on counter hit. If it's a counter hit , then yoshi will go trough him and the oponnent will crumple.

and the juggle part, the only thing u can do is enjoy the ride, this isn't like in soul calibur where u can still do some air control under specific circumstances.

btw here's a handy combo tip u should always have in the back of your head if you're aiming for a low hit/combo.

fc d/f 3, while rising 4, f+1+2
it's got great range and good priority, though it's punishable on block