I guess "unofficially" was the wrong word, but I was including bankswitching and any addon chips in that bracket; you can do it if you build your cart a certain way, or if you only target specific emulators or flashcarts, or if you don't mind being incompatible with the MCD or 32X, but I don't really want to get into those kind of compatibility adventures. I don't have plans at the moment for anything that I think would need that extra space. The level of smoothness exhibited by Pana would need a vast increase in the number of animation frames, which at the very least would require changing the way the animation system works as Sonic 3 already uses close to the single-byte limit due to different poses and such. ROM space is obviously an issue, and one that, if anything, would only be made worse with an SCD port - it's not like you can just access the whole CD at once, and the amount you could fit into a usable bank - which is already pretty low - would be further hampered by having to carry around an enormous player sprite as part of it. See the SCH topic for a similar discussion. I'm not saying it's totally impossible, but part of the reason S3C provides so many little things while still avoiding being too buggy, and actually ever getting updates, is because I try to focus on what can be achieved without tearing up too much of the original framework. Widescreen is not realistic either. You could draw everything narrower so it'd look right with an anamorphic stretch, but without being able to increase the actual horizontal resolution, it would look pretty terrible. These are things that are only likely to happen with a proper port of S3&K to newer hardware, so there might be better people to ask about that. S3C on S&K Collection is a pretty cool notion, but the idea of doing everything again in x86 fills me with dread. I'm happy to consider ports but I doubt I would program one myself.