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Knuckles in Sonic 1

Hack of Sonic the Hedgehog


Stealth has created a hack that imports Knuckles into Sonic the Hedgehog 1. This is a very advanced hack and includes all of Knuckles moves: Spin Dash, Gliding, Wall climbing, and even a bonus feature which can be accessed by inputting the following codes on the title screen.

  • Super Knuckles (once all emeralds are obtained):

B B B B Up Down Left Right (you’ll hear a ring sound if code is implemented correctly)

  • Cheat (Start with all emeralds):

B B B B B B Up Down Left Right (if implemented correctly you should hear the same sound as when you get an extra continue)

The patch is in xdelta format due to the IPS patch being nearly as large as the patched ROM itself. Tested on a ROM in BIN format.

ROM / ISO Information:

  • Sonic The Hedgehog (USA_ Europe).md - NOINTRO
  • CRC32: F9394E97
  • MD5: 1BC674BE034E43C96B86487AC69D9293
  • SHA-1: 6DDB7DE1E17E7F6CDB88927BD906352030DAA194
  • SHA-256: 46160BAA06362C711C9F1A5017CB7371026444936C8AF5E93A78996CF32FF2A6



RHDN Hack ImageRHDN Hack ImageRHDN Hack ImageRHDN Hack Image


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User Review Information

Sonic & Knuckles + Sonic 1 = ?

Reviewed By: Eldrethor on 10 Sep 2021

Ever wondered what it would have been like if Sonic & Knuckles worked with the first Sonic The Hedgehog? This hack answers that question, and it works with flying colors.

For those not in the know, the first Sonic game wasn’t compatible with the special S&K cartridge, but this didn’t stop rumors from floating around the schoolyard: cheat codes that didn’t work, absurd unlocking conditions, you name it.

The hack works as described: you get a fully-working Knuckles in place of Sonic, complete with a brand-new title screen. Spindashes, gliding, and wall-climbing all work beautifully, and the game plays exactly how I imagined it would.

Now you might wonder why someone would play this hack over the newer Sonic Classic Heroes, which does the same thing, but has the added advantage of including Sonic and Tails, a second team of playable characters, Sonic 2 content, level selection, and a save feature. Not that you can’t do both, but if you are building a curated library, I’d argue that this hack still has a place today for players who want a more “pure” experience that simulates the look and feel of playing a Sonic 1 cart plugged into a S&K cart, right down to the HUD, and it fits perfectly alongside S&K’ed versions of Sonic 2 and 3.

Overall, a great hack from Stealth that gets the job done, and does it well. Today, Sonic Classic Heroes may offer a lot more, but this hack still holds up if you just want something simpler in your collection.

Version 1.1 Recommended - Yes

User Reviews
Odd color... but okOkabe Zero-Link10 Sep 20211.1Yes
Sonic & Knuckles + Sonic 1 = ?Eldrethor10 Sep 20211.1Yes
What Should Have BeenPowerPanda19 Jul 20201.1Yes
At Long LastMother Kojiro03 Jan 2016Rev 01Yes