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 Sega Genesis with less bugs, new features and enhanced graphics. The hack has features include:

*Display the Press Start Button Text
*Fix Accidental Deletion of Scattered Rings
*Fix Ring Timers
*Fix the Hidden Points Bug
*Fix Special Stage Jumping Physics
*Change Spike Behavior
*Fix the Walk-Jump Bug
*Fix the Camera Follow Bug
*Fix Scattered Rings' Underwater Physics
*And finally... Add the Air Roll

Make sure you use a clean ROM to work.

Database match: Sonic The Hedgehog (USA, Europe).md
Database: No-Intro: Genesis (v. 20210226-213851)
File/ROM SHA-1: E91F3DF2AF29E7E5C4B08AF194554598967781EF
File/ROM CRC32: 2E7F7089