This is the Mushroom power up from Super Mario Bros. Once you eat it, you’ll grow taller… or fatter. Whatever you want.
Also, it can’t make you poop at all.
It can’t change your outfit either.
It can't speak at all ever, but can move all around.
And you can then out of Yellow/Gold Question Mark Block with "?" Symbol on it.
Split Personality into 3.:
1. Your original personality of a human being.,
2. An Anthropomorphic Furry Personality., & 
3. A Bring & Pony Personality.