Sonic Gaiden is a 2003 fan-made hack of the original Sonic the Hedgehog game for the Sega Genesis/Mega Drive.The hack is a co-operative effort between two noteworthy hackers in the community, Yuski the Dog and Esrael Neto. Esrael is most famous for his work on Sonic 2 Delta, a hack of the Sonic 2 Beta ROM which re-coded all the incomplete elements and restored deleted levels. Yuski had created a previous hack in 2000 called Mighty the Armadillo which was a sprite and palette hack of the U.S. Sonic 1 ROM. Sonic Gaiden was born when Esrael e-mailed Yuski a Sonic 1 ROM-hack with both Sonic and Mighty playable.

This is a Sonic 1 hack that I release a new build of each year on Halloween. This hack is mainly focused on art and music edits, however, a new monitor has been implemented in one of the zones.Credits~ASM~MegaPCM ~ Vladikcomper~Special Thanks~MegaGWolf

Eggman has been possessed and turned into Devil Eggman and has cursed South Island. Find the Chaos Pumpkins and undo the curse.This hack features art and music edits, new level gimmicks, and boss edits. Since 2015 I released a new build each year for Halloween. This however will be the last yearly build. While there are still changes and improvements that can be made, I am ready to move on with other projects.Since the last time this was entered into the contest I have made more changes to the art, updated some of the music, added new level gimmicks, adjusted a couple of the bosses, and fixed several bugs.Credits~ASM~MegaPCM ~ VladikcomperAdvanced Error Handler and Debugger ~ VladikcomperOptimised Scroll routine for Labyrinth Zone ~ MarkeyJesterCorrected Sonic 1 PAL Music Tempo ~ Crash~Sounds and Music~Optimised Sound Effects ~ MarkeyJesterMystic Cave Zone port from Clone Driver v1 ~ Tweaker / Puto~Special Thanks~MegaGWolf

Sonic in Paynt is a parody hack of Sonic the Hedgehog for the Sega Mega Drive/Genesis by sebmal (credited as "thehulk" in the hack as a semi-successful attempt at trolling Sonic Cult). In an attempt to make the worst hack possible, uncoordinated palettes and clashing music and were utilized.This hack is similar to the tongue-in-cheek hack Sonic 1337 by Ultima.There's also a sequel, Sonic and Tals in Paynt. It's even worse.

Sonic Labyrinth 2 is a hack by Team Overload, Unlimited Trees.While I was creating that terrible Pespi hack, I thought to myself "Man, why can't I just play normal Sonic 2?" And then, I thought to myself "Why isn't there a sequel to Sonic Labyrinth?". So, I put my skills to the test, and created what, basically, is just vanilla Sonic 2! No major changes, aside from a few "fixes". For example, remember that annoying control lock that stopped you from jumping and moving while spinning? Well, now you can't even jump while rolling! Now there is no control lock problem to deal with, because it doesn't exist! Another thing I should add, is that there is some bug in the game. I can't really explain it, but it's not like it's noticeable or anything!. Anyways, this is just normal Sonic 2, don't bother if you don't want to play the same game again.Also, this game was created using SonED2 and Sonic 2 Github disassembly. Why did I use SonED2? Because, otherwise, this game would be impossible!Spoliers: This hack is simply just a joke hack I made while I was bored. The game IS possible (except for one problem), but it would require some skills in order to beat. You would have to go on very specific routes in order to win, as well as be very careful on what you do. My tip: Don't spindash too much. It would mess you up a lot. Also, make sure you know a lot about Sonic's physics, otherwise you wouldn't make it very far.