We don't know exactly when Ohshima would have been aware of a sequel being made, but it's been stated that there was some brief communication between the two teams. Makes sense - Ohshima knew Naka and Yasuhara, it's not out of the question they would still speak, especially if they realize "oh hey we're all making Sonic games." But Ohshima wouldn't be aware of a Sonic 2 before the "we need it now" decree because Sonic the Hedgehog 2 didn't exist yet. Yasuhara mentioned in Nick Thorpe's "Making Of" article in Retro Gamer that he thought he'd have about two years to work on Sonic 2, which makes sense if STI was initially told not to make the sequel. Work on something not-Sonic as your main project, work on the conceptual design of Sonic 2 on your downtime. But then things shifted, they were told to make the sequel right away, and they only had nine months to do it. So proper work on Sonic 2 began...early January? Since the final build has a late September date. So Sonic 2 presumably began proper development before Sonic CD. If Sonic 2 is originally meant to come out in 1993 at the earliest, the idea of a "souped up" Sonic 1 on Sega CD for 1992 makes a lot of sense. Though I don't know how much would have actually changed. Would a zone or two be added? Would there be an extra bonus game? Or would they have just added some sort of FMV opening and given it Redbook audio? It's hard to say, because its something we know very little of. (Also, yes. After rewriting the development page for the original Sonic the Hedgehog, I did intend on going through and rewriting the rest. Get them up to the same level, but I haven't gotten to it yet.) 1992 was definitely an interesting year! But mostly behind closed doors. I mean, not only do you have the shortened schedule for Sonic 2, the beginning of CD development, you have both SatAM and the Archie comic enter production. Heck, I guess even Adventures of could have started being worked on at that point? I don't think we have an exact date, but if you premiere in September of 93, good chance you began the year before. I guess the only thing I'm not entirely convinced of yet is that the team who was responsible for putting Sonic 1 on Mega-CD became the team who made CD, that whatever plans they made for Sonic 1 enhancements folded over into CD. But maybe? It's hard to say either way, because we just don't have enough information. We don't even know who it was that supposedly created, well Yeah, that. It was on Sonic Team's website, but who designed the art for the disc? Who ported the code over, assuming the whole game is even on there? It simply exists, and we know nothing. Nothing! Which I guess emphasizes a point I've thought for a long time. There's still plenty about the history of this franchise, and the development of these games, that we know nothing of. Which is funny to think about. If you were to tell anyone from the early days of Simon Wai's Sonic 2 Beta Page the information we now know, they would be shocked and assume there's nothing left to learn. But there's always something more to find out. I think the alien emoji is just supposed to be "oooh spooky." That it is a cosmic coincidence, not that the Mania team had any knowledge about the move ahead of time.