For the power-ups that triggers the shorter grow animation (Leaf, Tanooki Suit, Hammer Suit and Frog Suit) I suggest using the effect-131 instead of the effect-10, like in SMB3:
- Spoiler

I also suggest triggering the effect at frame 3 (instead of frame 11), so that when the player is visible again the effect was either completely faded or almost completely faded.

