This entity exists outside of the Sonic the Hedgehog universe, where the series is fictional.

If you love Sonic.EXE, indie horror games, and fan-made PC ports, this is one game you don’t want to miss! Watch as we explore the terrifying world of Sonic.ERR and uncover its secrets.

1 day ago · Find out in Sonic Error 2: 2026 Edition. DISCLAIMER: Some parts of the scenes are inspired by Barney Errors 1 and 2 by Kiro Ramy, Coded Studios, and Red Cherry Games, and Splaat Error 4 …

Jun 2, 2025 · " Sonic.ERR " is a disturbing mod for Sonic 3 A.I.R. that reimagines the classic with a dark atmosphere, glitchy visual effects, and a sinister story... Ready to embody the most bloodthirsty …

The focus of the fangame seems to be focused around the Tokyo Toy Show build of Sonic the Hedgehog 1, with some kind of malicious threat lurking in the game's code that messes things up fast.

Sonic.ERR is a horror themed fangame similar to that of .exe, we'll be playing as Tails, Knuckles & Eggman and trying to get through a bunch of spooky stages and avoiding the creepy possessed...

Sonic.ERR is a fan-made horror video game that reimagines the Sonic the Hedgehog universe through a lens of psychological terror, drawing direct inspiration from the Sonic.exe creepypasta.

ERR Prime, otherwise formerly known as the official retake of Sonic.ERR, is an EXE created by MadnessPrime, and co-owned by NathanDarkson984, and the rest of ERR MegaTeam in order to …