[zullumaster]

Can we just demand more Metroid games?
Duck Hunt seems to fill that nostalgia factor similar to Mr. Game and Watch and ROB.
Dark Pit I haven't unlocked yet, but he and Dr. Mario probably should just be alternate costumes.
You could probably manage Ridley, He may be way too similar to Charizard however and could have been left out too. Also, the size thing.
Shulk I don't really get how to use.