Sonic 1 Swift (Genesis) Romhack

Sonic 1 Swift is a complete hack of Sonic the Hedgehog 1. It features:

New level design
New musics
New zones
Edited bosses with different strategies
Non-rotating Special Stages
Collectable 1-ups through the special stages
A Speed and Invincibility power up once you collect all 6 Chaos Emeralds
Spindash and some bugfixes from the vanilla game (thanks to Sonic hacking Studio)
Custom enemy sprites

And more.

Enjoy.

Hashes:

Filename: Sonic The Hedgehog (USA, Europe).md
CRC-32: f9394e97
SHA-1: 6ddb7de1e17e7f6cdb88927bd906352030daa194

File download:

Help about patching:

Most of the files you're about to download need to be applied to your game. Here is a list of utilities that allow you to do this:

Online Patcher: Marc Roblero's online patcher. Works with many different file types.
Floating IPS: NWell-known patcher for applying IPS and BPS files.
Delta Patcher: Used to apply xDelta files.
More Patchers

On most files, you can also press “Patch It”, to apply the patch without downloading the file.