While I agree with the video that the game made good use of the Mega CD hardware, I still think that they should have integrated some more ASIC chip powered scaling effects into the main levels. The only time it seems to have been used outside of the bonus levels and title screen is in that first level where Sonic is shot up into the air and you can see the Sonic sprite rotate. They should have added a few more flashy turning effects, maybe even have some rings spill towards the player when hit. The bosses especially had some rotating elements which would have looked even better if they had utilised the ASIC chip.
Watching the video got me thinking about a next-gen 3D Sonic game which takes inspiration from Sonic CD. Two main things:
1. Could the intro cartoon style be made into a 3D world, or would the Sonic design have to change too much?
2. With the added RAM and SSD, could the original developer's dream of unbroken transitions between past, present and future worlds finally be realised? It would be great seeing the scenery change as you travel through time in a 3D game, plus the exploratory style gameplay like the one used in Sonic CD would make a refreshing change from the boost gameplay of recent titles.