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Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island)

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SEGA Genesis Platformer ROM Hack Base Sonic the Hedgehog Ver v1.0 By D.A.Garden USA, Europe 1 Player 5 (0) 14

Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island)

What is Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island)?

Compiled by Alfred J. Hall · Editorial standards · Published June 14, 2026

This is a ROM hack of Sonic the Hedgehog for the SEGA Genesis, created by D.A.Garden and labeled as version 1.0. The original game came out in 1991, but this modified version appeared later as a fan project. The title tags suggest it might be called "Westside Island", though that name is not official. As a hack, it builds on the classic 16-bit platformer and may tweak levels, physics, or other elements, though exact changes are not widely documented.

The core gameplay follows the same structure as the original Sonic the Hedgehog. You control the blue hedgehog running through side-scrolling stages at high speed. Your goal is to reach the end of each zone while collecting golden rings, avoiding spikes, and destroying robotic enemies known as badniks. Pressing down and jumping lets you perform a spin dash. At the end of each act, you hit a signpost to move forward. The game retains the standard loop of speed, platforming, and exploration.

For fans of the series, this hack is a curiosity rather than a must-play overhaul. It may appeal to collectors who want to see how early fans modified the original game. However, without detailed patch notes, it's hard to say what makes this version different from the base game. If you enjoy experimenting with classic Sonic mods, give it a shot, but don't expect a radically new experience.

How to Play Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island) Online

Getting Started This hack plays exactly like the original Sonic the Hedgehog for the Genesis. Your first task is to select your game mode (usually "Start" from the title screen) and then you'll be dropped into Green Hill Zone, the opening stage. The goal is to run to the right, avoid obstacles, and reach the end of the act while collecting rings. Rings protect you from a single hit; without them, touching an enemy or hazard costs you a life. You can accelerate by holding the D-Pad in the direction you want to run, and pressing the jump button (X) to leap over pits or onto platforms. To perform a spin dash, hold down for a moment then press jump. This builds up speed and can break through certain walls. Each zone has three acts; after the third act, you face a boss enemy controlled by Dr. Eggman. Defeat the boss to move to the next zone. Since this is an English-language hack of the USA/Europe release, all menus and text should be in English. No special navigation is needed. If you find the game too difficult, you can use the retro gaming site's save state feature to practice tricky sections. Have fun and remember: it's okay to lose rings, just try to stay alive.

Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island) Keyboard Controls

Controls

Arrow Keys: D-Pad / Movement
X: A button
S: B button
Z: C button
A: X button (6-button pad)
Q: Y button (6-button pad)
E: Z button (6-button pad)
Enter: Start / Mode

Frequently Asked Questions

Does Sonic the Hedgehog have a multiplayer or co-op mode?

The original Sonic the Hedgehog for Genesis is a single player only experience. No official version of this specific hack adds multiplayer or co-op functionality.

Is Sonic the Hedgehog an official release, a fan hack, a prototype, or another kind of build?

This is a fan hack created by D.A.Garden. It is not an official Sega release, nor is it a prototype or demo. It modifies the original game's code.

What type of game is Sonic the Hedgehog?

It is a 2D side-scrolling platformer. The core loop involves running through levels at high speed, collecting rings, and defeating enemies to reach the end of each stage.