oh god, fox looks so terrible....anyways, sprite swapping isn't the way to go, especially since the moves are pretty awkward on fox...
needs an actual big portrait instead of a sprite, if you can do this to donkey kong, why not fox?
the hitboxes are pretty misaligned as stated aboves
this move is an infinite
and this wall climb thing can be repeated multiple times without stopping and fox won't come down.
and that is about as much as I can find atm, this fox needs to NOT be a spriteswap and needs way more work to be actually be decent.