Actually I had some of the same ideas except your B-Side was my B-Up. He continuously chomps in a direction similar to Fox's B-Up.
His Neutral B works like Wario's Chomp which you can chew up you're foes.
B-Side was an open mouth dash. He dashes forward swallowing multiple people if they are there and then spits them out.
B-Down was Power Glow. He flashes like he ate a power pellet. Anyone near him will be stunned, similar to Mewtwo's move except it surrounds him.
And the Final Smash is pretty much the same but he grows super huge 8-Bit and everyone turns blue, slowing them down.
One other thing. I made it so that some of Pac-Man's moves make his limbs disappear. He would alternate from his limbless form to his full form.
His Neutral B works like Wario's Chomp which you can chew up you're foes.
B-Side was an open mouth dash. He dashes forward swallowing multiple people if they are there and then spits them out.
B-Down was Power Glow. He flashes like he ate a power pellet. Anyone near him will be stunned, similar to Mewtwo's move except it surrounds him.
And the Final Smash is pretty much the same but he grows super huge 8-Bit and everyone turns blue, slowing them down.
One other thing. I made it so that some of Pac-Man's moves make his limbs disappear. He would alternate from his limbless form to his full form.