Genesis/Mega Drive

Sonic & Knuckles

Sonic and Knuckles continues the story directly from where Sonic the Hedgehog 3 left off. The explosion from the Death Egg sends Sonic flying deep into Floating Island's Mushroom Hills. Sonic knows of the Master Emerald hidden somewhere on Floating Island, and is sure that Dr. Robotnik wants it to give his Death Egg limitless power. Knuckles probably knows where it is - but can Sonic stop Robotnik's plans and find the Master Emerald all while fighting off Knuckles? Meanwhile, Knuckles is guarding Floating Island when he's attacked by one of Robotnik's robots! He quickly begins a chase for revenge. Sonic & Knuckles is the fourth game in the Sonic series. It retains the same basic features as...

Genre: Action
Year: 1994
Developer: Sonic Team
Publisher: SEGA of America, Inc.
Players: 2

Get Etera

P2P Netplay available on compatible cores

Achievements

20 achievements · 268 total points

Charge into Danger Reach Flying Battery Zone without using level select
5 pts
Pyramid Scheme Reach Sandopolis Zone without using level select
5 pts
Piping Hot Crust Reach Lava Reef Zone without using level select
10 pts
Heaven on Earth Reach Sky Sanctuary Zone without using level select
10 pts
Entrance to Death Reach Death Egg Zone without using level select
10 pts
Cracking the Egg Beat the game as Sonic without using level select
25 pts
Savior of Angel Island Beat the game as Knuckles without using level select
25 pts
Greenhorn Gem Collector Collect a Chaos Emerald without using level select
5 pts
Glorious Gem Collector Collect all 7 Chaos Emeralds without using level select
25 pts
Capping Things Off Collect all 7 Chaos Emeralds in Mushroom Hill Zone
25 pts
Witness Chaos! Transform into your Super form without using level select
5 pts
Heroic Hedgehog Beat the game as Sonic with all Chaos Emeralds collected without using level select
25 pts
Ring Novice Collect 50 rings without using level select
3 pts
Ring Collector Collect 100 rings without using level select
5 pts
Ring Expert Collect 200 rings without using level select
10 pts
Harnessing the Elements Collect an Elemental Shield of each type without using level select
5 pts
Screen Smasher Destroy 10 monitors in both Acts of Flying Battery Zone without dying or using level select
10 pts
Sparring Match Defeat Knuckles as Sonic without taking damage
10 pts
Emerald Guardian Defeat Mecha Sonic Mk. II as Knuckles without taking damage
25 pts
Doomsday Prepper Collect 100 or more rings at once in The Doomsday Zone without using level select
25 pts

Sonic & Knuckles leaderboard

Who scored the most on this game's achievements.

1 nicole.alves 2 achievements 1.000 XP

Sonic & Knuckles frequently asked questions

How do I play Sonic & Knuckles online with a friend?

Sonic & Knuckles (Genesis/Mega Drive) can be played online with friends using Etera's P2P netplay. Create a room in the launcher and invite your friend, who joins through the invite. Step by step:

Download the Etera launcher for Windows or Linux and create your account.
Ask your friend to do the same and add them to your friends list.
Pick the game in the library and create a netplay room.
Invite your friend: they accept the invite and join the room.
The launcher keeps dependencies on the same version for both players, avoiding desync.

How do I play Sonic & Knuckles on PC?

Download the Etera launcher (Windows or Linux), find Sonic & Knuckles in the Genesis/Mega Drive library and click to download. The launcher handles the emulator and setup for you.

Does Sonic & Knuckles netplay lag?

Etera uses a direct P2P connection between players, which usually means low latency. Results depend on each player's internet quality.

Does Sonic & Knuckles have achievements?

Yes, Sonic & Knuckles has 20 achievements worth 268 points. Achievements are counted and saved to your history and the leaderboard for subscribers and during the trial period.

Can I play Sonic & Knuckles for free?

Yes. Every account gets a 5-day trial with premium features. After that, the free plan allows 3 new games per day and 1 netplay session per day. Premium raises those limits.

Play Sonic & Knuckles on Etera

Download the launcher for Windows or Linux, find this game in the library and play solo or with friends.