I funnily regret suggesting the Blue Shell nerf I caused + Bubble Power-Up?

[MarioTheGre]

I know a long while ago when I was in the same server as the creator himself, I suggested for the Blue Shell to be able to swap powerups, which wasn't in the original game, which has sort-of caused the Blue Shell to be nerfed to how it is in this game. Now I'm sort-of regretting it, but not a lot. So instead, I thought of a NEW solution to the Blue Shell, maybe instead the Blue Shell could swap out powerups so long as you're not sliding around in your shell OR it's a powerup from your own reserve, which I think could work nicely for a small rework to a suggestion that I made so long ago.
In addition, I thought maybe a powerup from Super Mario Bros. Wonder could also work for this game (I think), perhaps maybe the Bubble Flower could work as a sort of defensive powerup. Allows you to blow bubbles in any direction the same way you would with the other flower powerups, causing a small push to those that run into them, but not damaging them. In addition the user isn't affected my their own bubbles and can run through and pop them (or use them for an extra jump). However, the bubbles could still pop via shells (including the Blue Shell), Fire/Ice Balls, or other things that could be thought up.
That's all I was able to think of outside of a few more powerups from the other NSMB games (such as the Penguin Suit, Super Acorn, Gold Flower, Super Leaf, and the P-Items that could possibly have 30s timers on them). I hope to continue to see this grow as much as it can!