True, hence my question on the level of feasibility regarding that. They are not an entirely new thing but they might just as well be considered as such, since they've only been implemented 2 or 3 times in Mega Drive specific projects: Pana and S1 smooth Edition. There's no harm in asking. Now we all know that getting better audio could be done in the S&K collection. I didn't know that, and I''m sure many lurkers didn't either. Mainmemory suggested that. It's a net positive overall. Also the sprites do exist for Sonic 1 at least. Maybe someone knows of someone else with lots of sprites from an obscure project from years ago. A poll could be opened about who's willing to do sprites. I would do share of the work no problem. I firmly maintain my point that there's no harm in asking. Just go through the Doom 3 community. They have achieved literally crazy things throughout the years because of the open nature of both their projects and their community. Being this defensive because of my half-decently articulated question is out of proportion IMHO.