Sonic Comet Edition

Sonic Comet Edition is a fan-made ROM hack based on Sonic the Hedgehog for the Sega Genesis / Mega Drive. The project was created by BCasais and was first shown as a beta during the Sonic Hacking Contest 2017. The hack focuses on redesigned stages, palette changes, and custom presentation while preserving the core gameplay of the original Sonic the Hedgehog.

☄️ A Different Look for Sonic's First Adventure

Instead of changing only character sprites, Sonic Comet Edition revises several visual elements throughout the game.

The hack includes:

• New color palettes
• Minor graphic edits
• Renamed zones
• Custom music
• Redesigned stage layouts

These changes give the original game a different presentation while keeping the classic Genesis style.

🌴 Familiar Zones With New Designs

The project focuses heavily on level design.

Early public versions of the hack redesigned Green Hill Zone and Marble Zone, introduced new zone names, and included an additional custom zone for the demo release. Later updates continued expanding the project.

As in the original game, you still:

• Run through side-scrolling stages
• Collect rings
• Defeat Badniks
• Search for alternate routes
• Reach the Goal Plate at the end of each Act

🎮 Classic Sonic Controls

Sonic's core movement remains based on the original Sonic the Hedgehog.

You still use familiar actions such as:

• Running
• Jumping
• Rolling
• Collecting rings
• Defeating enemies

The emphasis is on exploring redesigned stages rather than learning new gameplay mechanics.

🎨 What Makes Comet Edition Different?

Many Sonic ROM hacks focus on character replacements or gameplay physics.

Sonic Comet Edition stands out because its main emphasis is custom stage design and presentation.

🎮 EmulatorJS Controls

Keyboard Controls

• Arrow Keys – Move
• Z – Jump
• X – Action
• Enter – Start
• Backspace – Mode

Mobile Controls

• Virtual D-Pad – Movement
• On-screen action button – Jump
• Start button – Pause/Menu