Sonic the Hedgehog is a platforming action video game. Developed by Sonic Team in 1991, the blue blur himself would become one of gaming's universal icons, and became the first series to stand as a serious rival to Nintendo's Mario series, flaming the legendary console wars.

A classic 2-D side-scrolling platformer, you control Sonic, a blue-colored hedgehog that runs pretty darn fast across the stages (zones as they are called in the game). Scattered throughout the zones are golden rings that Sonic can collect, which allows him to not only take damage, but allow access to special stages. If completed, the special stage will grant Sonic one of six Chaos Emeralds.

Dr. Ivo Robotnik, an evil genius, realizes the power of the Chaos Emeralds, and wants them for himself. As such, Robotnik traps the innocent woodland creatures of South Island. In response, Sonic attempts to free the creatures and collect the emeralds for himself in order to stop Robotnik's plans.

This is a hack of Sonic the Hedgehog for the Sega Genesis. It redesigns many aspects of the original and adds new content. There are various cutscenes that play at various parts of the game. Levels are redesigned: there's new palettes, some new graphics, new music, new level names. Some new features are available such as respawn points after falling into a pit, rings expelling from enemies, and many other changes the author of the hack wants people to discover on their own.

The patch is in xdelta format. The ROM should be in BIN format.

==5th release==
*Updated all bosses! — Added a hit counter. — The Scar Night Place Bomb Boss is now the big one from Sonic CD.
*200% more explosions! — Also improved camera shaking a lot.
*Atmospheric Mode has been replaced with Nonstop Inhuman Mode, and it unlocks after finishing the game.
*Put platforms over the tubes in the overworld so you can no longer accidentally fall into them. (Thanks to MarkeyJester!)
*Revamped Crabmeat Boss music. (Thanks to Spanner!)
*Story and tutorial texts have been edited. (Thanks to Kaidan and Abcron!)
*Bunch of other fixes and small changes, but nothing really noteworthy...

==6th release==
*Uberhub Place added.
*Minor bugs fixed.

No-Intro Name: Sonic The Hedgehog (USA, Europe)
(No-Intro version 20130710-102701)
ROM/File SHA-1: 6DDB7DE1E17E7F6CDB88927BD906352030DAA194
File Name: Sonic The Hedgehog (W) (REV00) [!].bin

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