Hurry up Sonic! Before the Death Egg comes back!

�@The Mega Drive versions of "Sonic the Hedgehog 3" and "Sonic & Knuckles" were ported, coupled, and put on one CD.

The Mega Drive version of Sonic & Knuckles is so popular that a world championship was held.

Complete reproduction of the docking system!

The lock-on system (cartridge combination) that was possible with the Mega Drive version is also reproduced. In addition to "3" and "Knuckles", you can also enjoy "Sonic 3 & Knuckles", which could be played when "3" and "Knuckles" were docked together. (You can enjoy a total of three different games!)

Deep game content

Sonic, Tails, and Knuckles as player characters? Each of them has their own specialties, so you can try different strategies even on the same surface, so you can try again and again.

Sonic: Can attack while jumping. You can also have Tails come along with you.

Tails: His tails can be turned like helicopter propellers to fly.

Knuckles: Knuckles can glide and climb walls.

Two types of sound sources

BGM is available for FM sound sources (e.g., Sound Blaster 16) and for MIDI sound sources (e.g., Sound Blaster AWE32). You can choose according to your environment.

98 users, attention!

Improvements to the PC version of Sonic the Hedgehog CD. Supports full screen mode on PC98. It can be played on a large screen. Also, while "CD" only worked in 256-color mode, "Collection" does not choose a screen mode.

You don't have to be good at action!

There is a data save function, so even those who are not good at action can play. Also, once cleared, the special stage can be redone, so anyone can reach the true ending.

Competitive play, 2-player play!

If you select Sonic + Tails in the character selection, you can control Tails on the 2P side. This is not a simple cooperative game, but rather a cooperative game where Tails grabs Sonic and flies, etc. Find your own strategies unique to cooperative play. In the competitive play mode, players compete against each other to clear the stage in the fastest time. Will you run away with the fastest lap? Or will you be able to beat each other? It's guaranteed to be a hot game.

Special Stage Modes

Speaking of the Sonic series, each title in the series features unique special stages, and the ones in "Sonic 3" are especially popular because they are fun to play. In response to users' requests, we have prepared a mode in which you can enjoy only the special stages.