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.

Stealth has created a hack that imports Knuckles into Sonic the Hedgehog 1. This is a very advanced hack and includes all of Knuckles moves: Spin Dash, Gliding, Wall climbing, and even a bonus feature which can be accessed by inputting the following codes on the title screen.

*Super Knuckles (once all emeralds are obtained):
B B B B Up Down Left Right
(you'll hear a ring sound if code is implemented correctly)

*Cheat (Start with all emeralds):
B B B B B B Up Down Left Right
(if implemented correctly you should hear the same sound as when you get an extra continue)

The patch is in xdelta format due to the IPS patch being nearly as large as the patched ROM itself. Tested on a ROM in BIN format.

Sonic The Hedgehog (USA_ Europe).md - NOINTRO
CRC32: F9394E97
MD5: 1BC674BE034E43C96B86487AC69D9293
SHA-1: 6DDB7DE1E17E7F6CDB88927BD906352030DAA194
SHA-256: 46160BAA06362C711C9F1A5017CB7371026444936C8AF5E93A78996CF32FF2A6

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