No
No, you can unlock Fox, Falco, and Wolf, but not Krystal.
Depending on how you unlock them, possibly.
play 450 brawls
do you know how to unlock wolf and more
Use story mode.
It depends on you usually it will be jigglypuff.
wolf, foxes rival
get him on sse or play 450 offline maches
play 400 brawls.
Wolf. You can only unlock him in brawl.
After you beat Subspace Emissary, go back to "The Ruins" and when you find a floating door go in it and fight wolf and defeat him to unlock him