I think it's going to be rather difficult to recreate all the original SFX while at the same time capturing their familiarity. I also don't see the point in it when we could just use the same SFX from the more modern Sonic games that have already remastered them. However, anyone is welcome to experiment. Edit: There was something I forgot to suggest though. I would like to hear some attempts at new sound effects. For example, when Sonic runs past the waterfalls in Emerald Hill, I think it would add to the atmosphere and ambience if the rushing of the water could be heard. Also when Sonic runs on the water of the waterfall, I think it would be great if a paddling or splashing sound effect kicked in.