Get marth and beat classic mode with him
because no one liked him in ssbm
In SSBM, you have to beat him with Marth after you finish classic with Marth.
Unlock marth then use him to beat classic mode.
Play as Marth on classic mode (no continues) or play 900 vs matches.
No
No.
No he is not.
You can't get sonic in SSBM only in SSBB and in SSBB you get him at the subspace emissary near the end
yes
No.
no.
I looked up how to unlock them and people say that you need to beat Cruel Melee. I tried it with Roy and succeeded but there was no Tails or Sonic. You should maybe try to use different characters.