feel goes from game-to-game consuming the sonic in the game to regain his spotlight, so heres some facts about him.

he has the power to shapeshift, but it has its limits mainly he can't move or remove his ears and tail.
has the same abilities as sonic but they get stronger each time he consumes sonic by like %0.7.
whenever he makes that shadow face, the shadow on his face avoids all light.
like how sonic enjoys chilidogs, proto loves cupcakes.
he doesn't care for sonic look a likes, like shadow, exe, and etc.
whenever he consumes a sonic the game that they were in replaces sonic with feel, the game works perfectly normal just beside sonic not being in it.
there's only one way to get him to "kill" some who isn't sonic by getting in his way, an example would be shadow.
anyone he "kills" turns into a scarp design (like Shadow to Terios) and their eyes shall turn void black but this can't be seen by the players.
his tail can wag, he also enjoys getting petted.
most of what he eats goes straight to his thighs, its not visible but still.