The only good Sonic game is Sonic & All-Stars Racing Transformed, a fun kart racer which also featured tracks and characters from other Sega games. On PC, that included the unlikely mashup of a Total War shogunate and Football Manager's Manager Man.
I am therefore here for the similarly unlikely mashup of Sonic and Two Point Hospital, a free pack for the hospital management sim that lets you dress your staff as Sonic, Amy, Tails and Knuckles and pepper your hallway with Sonic statues. Watch the trailer below.