Excerpt from Super Mario 256 is a ROM Hack in development by Josh65536, it's said to include 16 main courses and 16 secret courses with a total 160 stars.
A demo of this hack was released in December 15, 2018
New charactersEditThere are 2 new characters: Yellow Toad and Peach.
The new abilities for the 2 characters are:
Yellow Toad: Runs faster, jumps lower. The Power Flower makes Toad even faster!
Peach: Runs slower, can hover in the air for a few seconds. Her Power Flower makes her shoot hearths that can be spawned by pressing the Y-button, these hearths kill most enemies.
There is also a rideable Yoshi in this hack, but you can also play as Yoshi as you could in SM64DS, unfortunately and evidently you can't ride a Yoshi while playing as Yoshi.