Play Sonic 3 & Knuckles: Master Edition 2 Extra Mode Online in your browser

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Sonic 3 & Knuckles: Master Edition 2 Extra Mode

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Inside Sonic 3 & Knuckles: Master Edition 2 Extra Mode

SEGA Genesis
Platformer
ROM Hack
5· 0 votes

Unofficial ROM hack. The notes below come from community sources and have not been verified against the patch itself, so levels, mechanics and features may differ from what is described.

Sonic 3 & Knuckles: Master Edition 2 Extra Mode is a fan-made hack of the original SEGA Genesis game Sonic the Hedgehog 3 & Knuckles. It was released unofficially online, likely in the 2010s, by an unknown creator or small team. This is not an official Sega release but a mod that builds upon the classic platformer to offer alternative content.

GAME INFO

Platform: SEGA Genesis
Genre: Platformer
Players: 1
Version: Master Edition 2 Extra Mode
Based on: Sonic the Hedgehog 3 & Knuckles

How to play Sonic 3 & Knuckles: Master Edition 2 Extra Mode online

Getting started:

Start by selecting Extra Mode from the title screen. This mode modifies the original game's level layouts and may introduce new gimmicks or enemy placements. You play as Sonic, Tails, or Knuckles depending on the version, with the same basic movement and abilities as the original.

The core loop involves running through levels from left to right, collecting rings, avoiding obstacles, and defeating enemies by jumping on them or using spin attacks. Each zone ends with a boss fight. The goal is to reach the end of the final zone. Save progress is not available in most browser emulator sessions, so plan to play through in one sitting or use savestates if provided.

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

Sonic 3 & Knuckles: Master Edition 2 Extra Mode FAQ

Is Sonic 3 & Knuckles: Master Edition 2 Extra Mode exclusive to SEGA Genesis or did it appear on other systems?

It is a ROM hack designed for the SEGA Genesis version of Sonic 3 & Knuckles. It was never ported to other consoles and only exists as a digital ROM file playable via emulators.

Is there anything iconic or memorable about Sonic 3 & Knuckles: Master Edition 2 Extra Mode?

The Extra Mode features rearranged levels and often includes accessibility to Knuckles from the start, giving experienced players a fresh challenge. It is remembered among fans for expanding replayability in a beloved classic.

Who developed Sonic 3 & Knuckles: Master Edition 2 Extra Mode?

The developer is not widely documented; it was likely created by a single fan or a small group and distributed through ROM hacking communities. No official studio is associated with this modification.

All SEGA Genesis games