ZeroL
Smash Apprentice
No.This was my problem, I just didn't figure it out until it was too late.
Does falling nair/uair beat "Runinandusmash"?
No.
Because no.
When you are hit by a fresh Fox upsmash you are simply game over. One more tip for this, don't try to airdodge through the upsmash to Fox' back. Good Foxes can predict this and do a running pivot upsmash resulting in a kill. Keeping Fox offstage by Zairing or Homing missiles is how I play this MU. Nairing Fox in his Side-B will mostly results in a gimp if followed by a good planned edgeguard.