Ive read and seen some art of two buddies playing games and one of them shrinks when they lose. To me that’s an amazing concept, like you gotta try and beat your friend to get your size back, or lose more and become just a tiny micro to your humongous friend.
But what if uno was the same way, like there would be certain cards that can either grow you with a multiplier and vise versa. That or board games where if you shrink small enough you can become part of the board game.
I’ve mentioned it on here before, but game mechanics are one of my favorite growth/shrinking/size transfer methods! Losing size, making the pieces/controller harder to manipulate, plus the distracting largeness of my competitor(s) making it more difficult to get it back… Such a fun concept.