This is a place where people can add ideas to the moveset. Let's start with the gimmicks:
Gimmick 1: Vinyl armor: When MP gets to high dmg or has 1 stock left cracks will apear. most if not all moves will be chnged by this. whether its more projectiles of new effects.

Gimmick 2: Lid: MP cant be footstooled but instead becomes a controllable platform. When the lid is up MP will insta-kill (Take 1 stock) ANYTHING on it. after that tho it will not have that effect for a stock. (For balancing purposes. and NO you cannot SD to regain that effect. Nice try tho.)

Have fun