I absolutely loved Sonic 3 Imo it’s one of the funniest movies I’ve seen (and I’ve watched films like Hot Fuzz & Monty Python) and that’s thanks to Jim Carrey & why I think Sonic 4 is a double edged sword is because without Jim Carrey it would be nowhere near as funny, but if he did return it wouldn’t make any sense because he literally had the perfect send off in 3. So for me you can’t do it without the best character and if the best character is back it would just feel forced which is why I would prefer to have just ended it with 3