Yeah, I'm making NES Bubbles right now as an expansion & NAS helpeer but you could make a shaded one as long as she has different moves. Here's his special moveset:
Special: Uses her high pitched sound rays to paralyze enemies.
Up special: Jumps up through one of those pink trampoline like things in the game.
Side special: Hits with a clock and whoever is hit gets sleepy.
Down special: Releases a Unira projectile.
Final Smash: Flies to the top of the screen, releases a high pitched sound ray & everyone is paralyzed for a couple of seconds, allowing Bubbles to KO them. Think Peach's Brawl Final Smash.