Sonic Forces will let you create and play as your own custom Sonic character for the first time in the series.
Seven animal types will be featured in the game: you can play as a wolf, rabbit, cat, dog, bear, bird or hedgehog, each with their own varying abilities.
You'll also be able to customise each character's looks and accessories, and equip a gadget powered by Wispons, an evolution of Sonic Colors' Color Powers.
It's an interesting addition, and a third way to play the game - as well as with both classic and modern Sonic.
Here's how it all looks:
Forces was announced earlier this year for Nintendo Switch, PC, PlayStation 4 and Xbox One. Developed by Sonic Team, it's due to launch late this year.