Sonic Dreams Collection is a satirical and somewhat disturbing take on the Sonic The Hedgehog fanbase, specifically around the more infamous side while being very surreal and strange. It also has a bunch of sexual undertones featuring fetishes commonly associated with the Sonic fandom though nothing inappropriate is explicitly shown. The game makes your brain fill in the gaps with that sort of thing. I get that the game is trying to make you uncomfortable but god damn I had to take a shower after this experience. I would definitely never recommend this game but some of the music was actually kind of relaxing strangely enough. But this game doesn't have much to offer beyond satire.
This was like the culmination of every edgy 20 to 30-year-old internet user who hated Sonic and loved pointing and laughing at whatever weird micro-communities with content relating to Sonic that they could find. "woahhhh man have you ever looked at the WEIRD sonic stuff they put on deviantart???? talk about CRINGE am I right?? sonic fans are so CRINGE dude" fuck you man. I don't care if there's some hidden profound meaning or ARG or whatever the people who played this game aren't here for that they're here to point and laugh