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Sonic 2: Sonic 3 Edition

Hack of Sonic the Hedgehog 2


This is a hack of Sonic the Hedgehog 2 for Sega Genesis that adds features from Sonic 3 into it. The features are:


  • Slightly redesigned Title Screen.
  • Knuckles is playable with all his moves from Sonic & Knuckles.
  • File select screen ported.
  • All item monitors from Sonic 3.
  • Sonic & Tails now use Sonic 3 sprites.
  • Moves can be done by pressing jump while in mid-air with or without shields.
  • Tails can now fly/swim. However, he cannot pick up Sonic in “Sonic & Tails” mode.
  • Super transformation is activated by pressing jump while in mid-air and the Super transformation glitch at the end of levels is removed.
  • Transitions between acts and zones.
  • Early levels have mini-bosses between Act 1 and Act 2. Sonic & Knuckles mini-boss music plays here.
  • Early levels have signposts at the end of act 1 that fall down from the top of the screen along with item monitors that can be revealed when a sign lands on it.
  • Some zones have different Act 1 and Act 2 music.
  • The 2 player VS option is removed.
  • The level select menu is not activated by pressing A+Start on the “1 Player” option, a la Sonic 3.
  • A original feature: the HUD is changed so that it displays the current powerup(s) and if playing as Super Sonic/Super Knuckles the HUD displays an invincibility icon.

The patch is in xdelta format due to shifted data resulting in IPS patches containing original code. The ROM should be in BIN format.

ROM / ISO Information:

  • No-Intro Name: Sonic The Hedgehog 2 (World) (Rev A)
  • (No-Intro version 20130710-102701)
  • ROM/File SHA-1: 8BCA5DCEF1AF3E00098666FD892DC1C2A76333F9



RHDN Hack ImageRHDN Hack ImageRHDN Hack ImageRHDN Hack Image


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User Review Information

Very good and fun, but there are problems

Reviewed By: rafael on 15 Feb 2016

This hack is very fun. It’s great to have the power-ups from Sonic 3, and they’re implemented very well. They feel like they belong here. The transitions are good and add a nice feel to the game. I also liked the new tracks.

There are problems though:

  • On the Chemical Plant Zone there were annoying slowdowns during some parts (I’m playing using Fusion 3.64 on windows and never had slowdowns playing the original or other Sonic 2 hacks).
  • (Again) on the Chemical Plant Zone [Act 2] once a got to the water part near the end of the level my power-ups were taken away (I don’t know if it’s supposed to do that).
  • On Casino Night [Act 1] the game got stuck on the ending. I finished the level with the invincibility power-up and the invincibility music kept looping infinitely while sonic waved his hand.

I haven’t finished the hack yet so I don’t know if there are other problems. So far I recommend it since it is very fun but this bugs are annoying and can break the game if you’re playing without the save feature.

It would be great if these problems were fixed on a 3.0 release.

Version 2 Recommended - Yes

User Reviews
Interesting, but has problemsdiablo66601 Sep 20212Yes
Very good and fun, but there are problemsrafael15 Feb 20162Yes