Sonic the Hedgehog (2013 game)

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Sonic the Hedgehog (2013 game)
Sonic 1 2013 Icon.png
Publisher: Sega
System(s): iOS, Android
Release Date RRP Code Rating
2013-05-15  ? ?
Google Android OS
2013-05-16  ? ?

The 2013 release of Sonic the Hedgehog is an enhanced downloadable remake of the 1991 Sega Mega Drive/Genesis game Sonic the Hedgehog. It was developed by Retro Tech Members The Taxman and Stealth, using a proprietary game engine named the "Retro Engine", an updated version of the engine used in Retro Sonic Nexus. This is the same game engine that was used for the Sonic CD remake, released back in 2011. Sega published the game for iOS and Android devices in May 2013.

Unlike other attempts at bringing classic Sonic games to new platforms in the late 2000s (usually handled by Backbone Entertainment), this Sonic 1 release is neither a port of the original game nor an emulated version. It was re-built from scratch, allowing for a number of enhancements such as widescreen support, online features (such as leaderboards), filters to change the way the game is displayed, and some extra gameplay-related bonuses, such as a spindash option, an a widely enhanced Debug Mode. When the game is beaten once, you unlock the ability to replay as Tails, Knuckles, or Sonic and Tails together. Using the aforementioned Debug Mode, along with other hidden features, you can also uncover the ability to use Super characters, as well as interact with objects never seen in, or scrapped from, the original game. It is otherwise faithful to the original game. It also addresses multiple bugs, and boasts a constant 60 fps framerate.


The music has been remastered for the new release, but otherwise remains completely faithful to the original game.

Other Differences & Notes

Zone Related

Green Hill Zone

  • The GHZ boss now sports a more realistic looking ball weapon. Until releasing said weapon, he can co longer be attacked prematurely. Also, due to the widescreen format, he moves across a slightly wider field and isn't quite as easy to defeat quickly.
  • The aforementioned ball can be spawned in the middle of a level. When spawned, it rolls along slopes on its own, and can be pushed by the player as well. Pushing the ball can destroy badniks, monitors, and the breakable walls. Funny enough, it can also travel through the S-tunnels. The ball is also capable of crushing you. Finally, you can stand on top of the ball and move it by walking along it. Doing so must be done carefully, as the character can easily fall off.
  • The scrapped Splats badnik can also be spawned, sporting 2 different variations. One will simply hop forward, not stopping to turn around for pits or anything of the sort. The other will take a couple hops one way, and switch direction.
  • Crumbling cliffs now sport the same mirrored sprite for both directions, instead of their own sprite. Due to shading appearances, the latter would make more sense. This can be classified as a bug.

Marble Zone

  • Climbing/Flying to the top of the wall in Act 1 now reveals a hidden invincibility box. Attempting the same in Act 3 reveals a brand new path to explore, exclusive to this release.
  • The previously scrapped sideways spiked stompers can now be placed in the level via Debug Mode.
  • The spiked Yadrin, which was not a badnik in the original Marble Zone, can be placed here via Debug Mode.
  • Finally, a UFO object can also be placed, which will create rotating UFO sprites in the background, not seen anywhere before except in beta screenshots and mockups.

Spring Yard Zone

  • In Act 2, if one flies upwards just before the slope area leading to the 2 exits, another exclusive new path can be found, leading to a THIRD exit!
  • In Act 3, flying up above the block path leading to the boss, Tails can find a Ring Monitor. It is just below where the extra life can normally be found with Sonic in the original game.
  • This boss fight has been slightly modified, with two block barriers surrounding the battle arena.

Labyrinth Zone

  • Using Debug Mode, the Goggles monitor can be placed in the level. It serves as a Shield, but while it will constantly protect the player, it only appears underwater.

Star Light Zone

  • At the end of Act 1, the lower path to the exit now has a signpost.

Scrap Brain Zone

  • In Act 3, the sprite that appears when the character falls is affected by what sprite the character has when he falls at the end of Act 2. Knuckles can appear falling from a glide, and Sonic and Tails can appear with their carrying sprites, albeit not flying together, resulting in a small bug.

Final Zone

  • Instead of just appearing and standing, the character springs up out of the floor at the start.
  • Due to the widescreen nature of the game, you can now see a trapdoor lock as you enter the battle arena. On the opposite side where Eggman appears, the metal pod slides open, revealing the doctor, post-fight.

Special Stage

  • A seventh Special Stage has been added, in the case of the player uncovering the hidden Level Select and selecting 7 Max Emeralds. If 7 Max Emeralds is selected, the player can turn Super after completing all Special Stages.


  • While Debug Mode is enabled, monitors can be used more than once.
  • The Level Select menu style is taken directly from Sonic 2, including newly made zone icons for the Sonic 1 zones.
  • Player options now include Sonic/Tails, Tails Alone, and Knuckles. Tails and Knuckles have their movesets from Sonic the Hedgehog 3, allowing them to get to areas that Sonic cannot normally access. (That is, without Tails' help!)
  • The Sonic 1 title screen changes depending on which character is selected.
  • Also found in the Level Select menu is an items option. You can choose S1, S2, S1+S3, or S2+S3. Options with S1 will result in S1 style monitors, a S1 style shield, and S1 style invincibility. Options with S2 will result in S2 style monitors, a S2 style shield, and S2 style invincibility. Options with S3 will result in blue shields being replaced entirely with Elemental Shields.
  • Extra monitors can be found in Debug Mode, including the old S monitor, which grants 50 rings and an instant Super form. Also found is a switch monitor, which switches the S1 Blue Shield with the S2 Blue Shield. Another one is what looks to be a Spike Monitor of some kind. Hitting it switches the "Spike bug" from the original version of Sonic 1 on or off. Finally there is what looks to be an Emerald Monitor. It has no visible effect.