by Emerald Mentality in
Fan Game


Sonic Robo Blast 2 is a free 3D Sonic the Hedgehog fan-game built using a modified version of the Doom Legacy source port of Doom. SRB2 is closely inspired by the original Sonic games from the Sega Genesis, and attempts to recreate their design in 3D.


SRB2’s features include, but are not limited to:

  1. Beautiful 3D Environment, with free movement in all directions.
  2. Old-school platforming, complete with rings, springs, hazards, reversible gravity and other obstacles.
  3. Three playable characters: Sonic, Tails, Knuckles – each with their own unique abilities.
  4. Over 20 levels to play, featuring a variety of locations, from green meadows, to deep underwater ruins, mines, mountains and space stations…
  5. Fast-paced multiplayer fun with 2 player split screen or up to 32 players online in nine different game modes.
  6. Configurable graphics and control options – play with a modern WSAD + Mouse FPS control setup, a relaxed gamepad setup, or anything in between!
  7. Original Soundtrack produced by some of the best Sonic music artists on the Internet.
  8. Customization: SRB2 includes the ability to create your own levels, characters, game modes, and with knowledge of programming, even a whole new game.
  9. …and so much more!



The blue streak returns again, ready to tackle Eggman and his robots. Definitely the quickest of all the three, but also the least versatile. He will find several areas inaccesible and must find new routes around them. That’s not to say he’s not learned anything since last time. The speed thok allows him to shoot forwards at high speeds, aiding him in longer jumps and giving him automatic acceleration.


Having missed his first chance to help Sonic back in Sonic Robo Blast, he is more than ready to assist Sonic this time around. While nowhere near as fast as Sonic, he has his flying ability, which will help him over longer jumps and reach new areas.


Having played a minor role in stopping Eggman from the original Sonic Robo Blast, he returns to put Eggman out of commission once and for all. While he lacks Sonic’s speed, he is faster than Tails and retains his climbing and gliding skill.


Watch out! The evil doctor is back to wreak havoc upon the planet and make Sonic’s life miserable once again! He won’t stop at anything to achieve his ultimate goal.


After Eggman was defeated back in the first game, he decides to take more time to reconsider his strategy, hiding away in an underground base for three months. All Eggman really had to show for this delay was a reduced robot army and a special battleship he built called the ‘Doomship’. He didn’t stand a chance against Sonic and his friends. Eggman’s space-radar bleeped as the Black Rock came within its range. 

Eggman thought nothing of it at first, until he realised that he had a new battlestation! From there he could attack the world, and launch robot armies without the fear of anyone retaliating against such a huge weapon. And with the Chaos Emeralds, the world would be begging before his knees to end the suffering and let him rule the planet. It was a perfect plan!

Eggman decided to quickly increase the amount of robots he was producing. World domination was within his grasp at last! He launched his Doomship a week later, full of robots to take temporary control of zones until he’d finished putting the final touches to his work on the Black Rock. They were also instructed to return any Chaos Emeralds they might find.

His first target: Greenflower City.

Sonic was enjoying his long overdue vacation. Without Eggman around, he and everyone else could relax whenever they wanted. Little did he know that today was going to be the end of it. Hearing Tails’ voice in the distance, Sonic rolled his eyes. It was probably a stray beach ball, thrown out into the sea. No doubt Tails wanted him to recover it. Tails arrived, and told him that there were robots attacking the Forest Zone. Before Tails could finish, Sonic was already a tiny dot on the horizon. The robots were simple Crawla robots, destroyed with minimal effort. Sonic looked up at the sky and to his horror, saw an enormous battleship, with its guns pointing at the Greenflower City. He had been tricked into a diversion! Without wasting time, Sonic rushed up to the Doomship, even though there was nothing he could really do.

But it was too late. In a blinding flash, the Greenflower City was a pile of ash and rubble. Laughing at Sonic, Eggman revealed his plan to control the Black Rock and turn it into an unstoppable force of destruction. Then he flew off, leaving Sonic standing dead in his tracks.

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However, unlike last time, he would not be alone in the fight. Tails was willing to help, and Knuckles had also offered his assistance, realising that the Floating Island would also be in danger.

Sonic Metropolis Credits

All credit for the fan game goes to Sonic Team Junior. Please visit their site for even more information by clicking the Download link above. Feel free to comment on your experience with the game. 

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Ripoff Artist