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.

Sonic 1 with jam layouts and features wrapped up in a nice options menu

The Main features:

- Includes Revision 00, Revision 01, Easy and Original Layouts. (Original is just Revision 01 but with a fix to prevent jumping over the level in SLZ2.)

- Can enable or disable the level order for easy mode separately from Easy mode itself. (Easy mode has files for every level, which contain some differences from normal mode)

- Enable or disable the spindash

- Enable or disable Time Overs

- Switch bug behavior between original and Jam's (Same as Sonic 2's)

v2.1.1 changes:
Fixes bosses not actually using easy hit count due to typo.

v2.1 changes:
Fixes the rest of the bosses in easy mode not having the smaller hit count.

v2.0 changes:
Big update from Devon fixing a lot of easy mode things and adding in missing features:

Includes:
- Port over easy mode Final Zone boss
- Apply easy mode hit count for Labyrinth Zone boss
- Fix spike bug not being disabled
- Default to 3 continues on start for easy mode

For Sonic The Hedgehog Jammed (Rev00).bps use this:
- Database match: Sonic The Hedgehog (USA, Europe)
- Database: No-Intro: Genesis (v. 20210226-213851)
- File/ROM SHA-1: 6DDB7DE1E17E7F6CDB88927BD906352030DAA194
- File/ROM CRC32: F9394E97

For Sonic The Hedgehog Jammed (Rev01).bps use the one below

Database match: Sonic The Hedgehog (Japan, Europe, Korea)
Database: No-Intro: Genesis (v. 20210226-213851)
File/ROM SHA-1: 69E102855D4389C3FD1A8F3DC7D193F8EEE5FE5B
File/ROM CRC32: AFE05EEE

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