Sonic Classic Heroes is a ROM hack for the Sega Mega Drive / Genesis that is the result of a collaboration between flamewing and ColinC10, combining their respective hacks Sonic 2 Heroes and Sonic 1 and 2. It therefore is a single ROM that offers the entire campaigns of Sonic the Hedgehog and Sonic the Hedgehog 2, either alone or together; and enables the player to play as many characters such as Sonic, Tails, and Knuckles. The hack is named due to the ability to control a team of characters, which is reminiscent of the more recent 3D game Sonic Heroes. The hack is built on Sonic 2's engine, which has been enhanced by both flamewing and ColinC10 to have new features. These include: multiple gameplay elements from Sonic 3 & Knuckles, such as element shields and character-specific abilities; the ability to save progress, scores, etc. to SRAM (something rarely implemented in Sonic 2, with the other notable example being Esrael's Sonic 2 Delta); various bug-fixes and improvements to the mechanics of the original games; and many more features, both implemented and planned.

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 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.

Sonic The Hedgehog: The Lost Worlds is a hack of Sonic the Hedgehog 2 by ExecByte. This hack features all of the zones that were cut from Sonic 2 during development. Some zones have been ported from the Sonic 2 Simon Wai prototype and then finished up, and some have been created based on magazine pictures and information from interviews with people who worked on Sonic 2.