I was dreaming I was going to play Sonic Adventure 2 (Battle). I started the game normally, but instead of the usual title screen, it was like where you entered a level with Shadow; where there would normally be the blurb describing the mission it said something like, "New item acquired. Entering Trickster Mode." I... can't actually remember at this point.
But I entered what seemed to be the Chao Lobby with Shadow. There was no teleporter out, and the Hero/Dark Gardens weren't unlocked; there were only the entrances to the Neutral Garden and the Chao Kindergarten. In front of the entrance to the Neutral Garden and blocking the way, though, there was a little blue bear; I think it was a gummy bear? It didn't look like any of the animals normally in the game, but I took it and walked through the entryway into the Neutral Garden.
The room I walked into had an indoor swimming pool, and I had become Trickster Dirk. The gummy bear was gone, but I had the trickster lollipop/sucker, and the pool room (it was a lobby sort of area) was full of Homestuck characters. I met up with John, Rose (she looked grimdark, but I knew she wasn't), and Dave; they were all god tier. Jade, seemingly, was missing, but I didn't notice and it's only now that I think of it
They greeted me and asked about the battle plan to beat Lord English. I immediately decided trickster mode, and started chasing after John (like Meenah trying to spear him, but unsuccessfully) to turn him trickster; Rose stopped me, though, and said we needed to plan out tricksterizing strategically. I agreed, and gave up. I ended up falling into the pool somehow after that (I think I was pushed?), and I was afraid I was going to drown, but I just got out without anything happening to me. At this point I remembered that this was really similar to a theory I read about Homestuck ending (but I was literally Trickster Dirk at the time, so dream logic in place there), and I said that to a fantroll in a canon group right next to me (she was a player like I was; at that point I recognized I was playing a really immersive game). She said she knew, and that it was really exciting; she couldn't believe Hussie would slip up like this and release a game before Homestuck even ended. (This wasn't the literal Homestuck video game.) We figured it was time to get on our way and play the game before anything happened, so we left the lobby through another door separately.
My group reappeared in a sunny, green, hilly area. You couldn't really say it was like the Green Hill Zone in the game, though; it was literally just a large expanse of hills leading up to a large collection of rainbows, and it looked pretty peaceful. Rose suggested we find the source of the rainbows, and all I remember doing was having to /get/ there; there weren't any challenges we had to figure out.
When we got to the source of the rainbows, it didn't look like anything we expected; the rainbows were paths leading up to a large plateau of clouds, and they just kind of disappeared into both the clouds and the ground. They weren't stairlike, though; they just went /up/, and the incline was oddly steep.
We made it up to the top of the plateau, but there was nothing up there to lead us to the next stage. There were cloud podiums on the edges of the platform which I assumed we needed to do something with, but nothing the group did worked at all; in the end, we realized we forgot something important. Rose, who was suddenly in her god tier outfit, said that we needed a bag of Marines (like action figures or something I guess??? That part of the dream didn't really make sense, but she conjured up an image of little blue men in a see-through bag so), like Dave and the fantroll girl apparently suggested bringing near the beginning of the adventure. None of us in the group listened to them. We all agreed now, and just kind of stood there because we had no way to continue on; we'd made the game unbeatable.
That's when I woke up.