I was thinking, What if in a future update, instead of just fading to black after a boss level, something happened in the arenas that opened up a pathway or something in order to have a similar thing to what happens in sonic 3 & mania? Red Volcano to Egg Rock already does this, and I really like that, maybe other stages could get something similar? Like gfz-thz could have a wave of goo flood the arena and carry sonic and the gang off to the level, or acz-rvz could show them jumping off the train and running into the volcano. Stuff like that could really make the world feel more alive imo. Just some thoughts I had.