 Those are medieval robots. On January 12, 2024, a game was posted on SonicFan Game HQ, labeled Green Mountain. The game wasn't known for some time till it was discovered by one Twitter user. The game was made by a mysterious user named, Green Mountain Sonic, who was only active till January 13th. However, his only quote is, Climb the Green Mountain Trail, with the game link. The game immediately begins with Sonic in Green Hills Zone without the title card. There are a lot of noticeable differences, like Sonic's eyes being closed, the background is very oversaturated, the sky is black, and the classic song was replaced with weird distorted music. There are also no enemies nor obstacles in our paths and our mission is to climb the Green Mountain Trail. What's weird about this game is that it has falling damage whenever Sonic falls in deep heights. The player needs to focus on platforms in order to not mess up. Once reaching to the top, Sonic will meet a doppelganger version of himself. He has no face and his body is completely blacked out. At first he won't do anything but it isn't long till he starts attacking Sonic. Once you hit him four times, he starts to run to the left to escape but the game window is preventing him to leave. Getting him again will make him run the right and getting him last time will cause him to melt and die. Once beating him, Sonic will get stuck on the top with no options to escape, and waiting for three minutes, the game starts to deteriorate along with Sonic who starts to melt. While the game is disappearing into darkness, Sonic can only at this point jump with no ducking or looking up. Once the game reaches its limit, Sonic melts yet again, and this time his face is completely done, leaving a hole on his face, just like his doppelganger. Sonic then stands lifelessly with no chance of moving while the rest of the game vanishes. Then the game overtext appears with a very eerie sound that plays three times. This is where the game ends. While digging to the game files, you'll find mysterious yet disturbing files such as we left it in the car, or did you get the shovel? However, one file stands out with most of them titled Returnal.png. Upon opening it, it shows a disturbing yet unknown image of what seems to be Sonic's corpse or the mountain. However, it's still debatable of what the image means.