Yeah! Had another one. It's a bit long, but whatever.
I was in this area that led off to several other rooms with different things in them. One of the rooms had big glass windows that you could see into the inside through. This room contained a bunch of music equipment like amps, guitars, and drums. It also contained Billie Joe. He looked like he did in the American Idiot era and was wearing recording studio headphones and playing a guitar. I couldn't hear what he was playing because the door was shut, but I could see what he was doing. There was a wall that separated Billie's room from one right next to it that looked to be some sort of abandoned meeting room. It had a big whiteboard on one end and a long heavy table and swivel chairs. Some things were strewn around over the table on the outermost corner and some of the chairs there. I went and knocked on the door to Billie's room and he stopped playing, took off his headphones, and smiled which gave the indication that it was alright to come in, so I did. "Oh, hi!" he said "Did Mike and Tré tell you? There are some strange Pokémon games in the room next to this one that you would maybe be interested in. We don't know what they are, but you might I suppose." I thanked Billie and went to the room next door. The lights were turned off and it was very dim, but still enough to see by so I looked over the games. There were also different game consoles including a Gameboy Advance and Gameboy Advance SP. There were all the games I knew like Sapphire, Leaf Green, and Crystal, but there was one game I had never seen before. It was a simple gray Gameboy cartridge stuffed into the SP's slot and it looked quite old. I took it out of the SP and went back next door and showed it to Billie. "Yeah, that's it. Does it look legit to you?" said Billie "I don't know" I replied. "I've never seen anything like it." "Why don't you try playing it?" Billie said. So I walked back into the other room and shoved the cartridge back in. Then I went across the main area to a place where Mike was sitting. "Mike, look at this." "Oh yeah. Did Billie tell you about that game we found? Weird, huh?" said Mike. I nodded and turned the game on while Mike watched. There was no color whatsoever. The graphics were similar to those of Red, Blue, Green, and Yellow, but they were as gray as the cartridge. The player character was standing in a patch of grass and I made them take a few steps before there was a random encounter. A strange Pokémon jumped onto the screen and my Pokémon (which was also one I didn't know) managed to defeat it even though it was only at level 4. It automatically grew to level 24 from the experience gain, which was weird. There was another encounter after a few more steps and my Pokémon was suddenly back to level 4. I won the battle again, but then the game started glitching and tripping so I turned it off because it was creeping me out. Mike was like "Whoa. That was weird. Why don't you try checking out the internet?" So I did and after a lot of searching (which I won't go over because it's long) all I came up with was some vague rumors of a Pokémon game that was never released and featured a familiar legendary Pokémon.