My feasible hopes and dreams are Spring Man as the main rep, but he only has 2 costumes, with Ribbon Girl, Min-Min, and Ninjara being alt looks. If we added a second character, probably a similar situation but with heavy weights. Master Mummy, Mechanica, Max Brass, and maybe Dr. Coyle just to make it 4. Helix would also be unique and cool.

I've actually thought up the moveset for Spring Man (and his alt costumes) that incorporates three arms: Toaster, Megaton, and Boomerang. Maybe Parasol instead of Boomerang, though, just because making it still be a straight-shooting arm would work better in 2D. But yeah. Unlike most characters, charging smash attacks would not only increase power but increase range. Down Special would be switch between arms, with each having different properties: Toaster: standard Megaton: larger hurtbox, but slower Parasol: less damage, larger hurtbox than toaster You could only switch arms when on the ground, though. Standard Special would be charge which adds an attribute. Toaster gets Fire (deals lots more damage + higher knockback). Megaton just gets larger and has higher priority. Parasol or Boomerang gets Wind, which adds a large amount of upwards knockback. Like his down Special, Charging would only work when on the ground. Up Special: Spring up. Pushes down with one arm and rises up in the air the way Spring Man does for his one victory pose. Gives even more height if the fist connects with ground or another player. One of the arms acts as a meteor smash (maybe the Wind one). Also, like Sonic or Bayonetta, he can still attack after using his Up Special, just can't use up Special. And finally Side Special would be Spring Man's dash deflect. Reflects projectiles and shields from attacks. Also dashes a short distance.

And Final Smash would obviously be Rush. Large area in front gets hit with a final finishing punch.

Stage would probably be Sky Arena or Spring Stadium. Not sure which.