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Engineering & Reverse Engineering(Mark this forum as read)
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  Important Topics
Pinned   Attachments General Project Screenshot/Video Thread Tweaker 
  • 4264 Replies
  • 852939 Views
Pinned   Random Hack/Mini Project Thread Malevolence 
  • 621 Replies
  • 192446 Views
Pinned   Attachments Basic Questions & Answers thread
NEWBIES: Start here!
Tweaker 
  • 5396 Replies
  • 580567 Views
Pinned   Sega Homebrew Competition 2015 Super Egg 
  • 8 Replies
  • 2814 Views
Pinned   Who Can Test On Hardware? Quickman 
  • 75 Replies
  • 24331 Views
Pinned   Sonic Retro on GitHub
Who? What? When? Where? Why?
MainMemory 
  • 40 Replies
  • 7078 Views
Pinned   Sonic Hacking Contest 2015
Oh hey it's finally announced.
Spanner 
  • 5 Replies
  • 2741 Views
Pinned   Attachments THE SonED2 thread
2009-05-26 quickfix
Stealth 
  • 212 Replies
  • 58356 Views
Pinned   So, you want to start hacking Sonic?
PART 1: Newbie starting guide.
Jayextee 
  • 43 Replies
  • 41779 Views
  Forum Topics
Help with porting S3K's layout format?
MCZ bug I can't seem to shake
Clownacy 
  • 5 Replies
  • 263 Views
Sega PC Reloaded
Four old games, working still/again
Korama 
  • 62 Replies
  • 13344 Views
Sonic Background Scrolling Screensaver
it's for your computer
MainMemory 
  • 38 Replies
  • 3947 Views
SonLVL
Level Editor for S1, SCD, S2NA, S2, S3K, SKC, SCDPC - 556 - 05/24/2015
MainMemory 
  • 579 Replies
  • 88744 Views
Sonic 3 Complete
S&K Collection on MD, with fixes, Sonic 3 music and many options.
Tiddles 
  • 1600 Replies
  • 416707 Views
Sonic Generations Hacking (and More!)
Generations Cracked wide open (Custom Levels are an ongoing event!
Andrew75 
  • 4476 Replies
  • 1564208 Views
Some changes/fixes for Sonic 1 KingofHarts 
  • 60 Replies
  • 16069 Views
Sonic Heroes Prototype ADX files
I kinda want them
Glisp 
  • 1 Reply
  • 755 Views
Sonic 3 And Sally Acorn
"NICOLE, laser!"
E-122-Psi 
  • 23 Replies
  • 3547 Views
Sonic 4. Polygon Jim 
  • 293 Replies
  • 88349 Views
SonicGLvl v0.9 - Now on GitHub
NOT FOR REGULAR USE - EXPERIMENTAL BRANCH
Dario FF 
  • 16 Replies
  • 15090 Views
Sonic Runners sound files Azu 
  • 6 Replies
  • 1008 Views
Sonic Lost World (Wii U) Hacking & Resources - Tools are public
The child of Colors and the Hedgehog Engine
Dario FF 
  • 60 Replies
  • 19778 Views
Sonic 2: Return of Shadow/demo and website. JoenickROS 
  • 8 Replies
  • 2091 Views
IDA Pro - Program Counter fix in 68000 disassembly
use one of the other in this topic instead of drx's k
kazblox 
  • 2 Replies
  • 565 Views
Sonic Adventure DX: Fixed Edition
1.0.0, mod loader! 4/29/2015
Morph 
  • 108 Replies
  • 95173 Views
S1-friendly improved Sonic 2 sound driver
April Fools' joke gone too far
Clownacy 
  • 4 Replies
  • 1085 Views
SA2/SADX Mod Loader
I am the best at names
MainMemory 
  • 98 Replies
  • 39571 Views
S&KC Mod Loader
Because why not
MainMemory 
  • 2 Replies
  • 761 Views
Some changes and fixes for Sonic 2 Esrael 
  • 143 Replies
  • 33025 Views
Sonic 2 Delta v0.25
Test version
Esrael 
  • 15 Replies
  • 3683 Views
Sonic Colors 60fps hack (NTSC/PAL)
Dolphin required
evilhamwizard 
  • 11 Replies
  • 1917 Views
SADX/SA1 Hacking/Modding
Now with more research and development!
MainMemory 
  • 2170 Replies
  • 417320 Views
Flex
web based tile / mapping / DPLC editor
snkenjoi 
  • 10 Replies
  • 2934 Views
Sonic 3 Resort Island
Because even heroes need a holiday
UtopiaUK 
  • 35 Replies
  • 20793 Views
Sonic Classic Heroes
Rise of the Chaotix (sorry, Mighty) - v0.10.008a out
flamewing 
  • 1518 Replies
  • 426856 Views
Amy In Sonic 2
"I'll destroy all of you!"
E-122-Psi 
  • 232 Replies
  • 76643 Views
Amy In Sonic 1
"Amy Rose is here!"
E-122-Psi 
  • 261 Replies
  • 56336 Views
S3K to S1 SMPS Converter ValleyBell 
  • 16 Replies
  • 7240 Views
Sonic 2 Special Stage Editor
Windows and Linux; v0.2.0
flamewing 
  • 34 Replies
  • 10929 Views
SADX PC '04 XInput
v1.4, 3/26/2015
Morph 
  • 11 Replies
  • 3525 Views
Big's Fishing Derby
ビッグの 釣りダービー
flamewing 
  • 23 Replies
  • 5735 Views
Sally in Sonic 1! E-122-Psi 
  • 161 Replies
  • 52554 Views
Various bugfixes for the Sonic 1 sound driver ValleyBell 
  • 1 Reply
  • 597 Views
Sonic Adventure 2 Hacking
Now a general SA2 Hax thread
Turbohog 
  • 846 Replies
  • 316972 Views
Sonic Advance Hacking
Just a general Sonic Advance hacking thread.
Demonic722 
  • 27 Replies
  • 5937 Views
SoniPlane
HELP WANTED! - SEGA MegaDrive plane editor (beta 1.1.1) - in-dev:
Green Snake 
  • 24 Replies
  • 6804 Views
Optimizing the DMA queue
Now with S2 Special Stage bugfix
flamewing 
  • 27 Replies
  • 6114 Views
Making Sonic 2's sound driver good
A collection of guides too short for their own topics
Clownacy 
  • 1 Reply
  • 885 Views
Sonic Fighters Hacking Andrew75 
  • 34 Replies
  • 13377 Views
Sonic 2 Clone Driver v2
v2.2.6 | and other SMPS-related ramblings
Clownacy 
  • 75 Replies
  • 18810 Views
Get Blue Spheres? Cinossu 
  • 14 Replies
  • 4252 Views
Blue Sphere Password Algorithm Reverse-Engineered ArrowCase 
  • 4 Replies
  • 1478 Views
Rocket Knight Adventures Compression
Tool Help Required
StephenUK 
  • 2 Replies
  • 999 Views
Optimized KosDec and NemDec, considerably faster decompression
UPDATE: New improved Kosinski and Nemesis compressors by flamewing
vladikcomper 
  • 30 Replies
  • 6675 Views
SMPS2ASM and improved S&K Driver
Converting songs and SFX has never been easier
flamewing 
  • 40 Replies
  • 12556 Views
Saxman's Sonic Boom engine
Throw out your S2 disassemblies. Try this instead.
saxman 
  • 74 Replies
  • 19330 Views
Sonic X-treme Modding !
Now that you've got the 037 leak, Lets Have some fun!
Andrew75 
  • 0 Replies
  • 2471 Views
[S1] Considerably speeding up level loading
Gotta go fast, right?
Green Snake 
  • 14 Replies
  • 3048 Views
Strange fix to test out
I want to see if it's just me
Clownacy 
  • 4 Replies
  • 2267 Views
GSXPwn snkenjoi 
  • 0 Replies
  • 1008 Views
Sonic 1 Color Contrast
Beta 4.3
TheInvisibleSun 
  • 95 Replies
  • 27381 Views
How to improve PCM playback quality with Sonic 2's sound driver Clownacy 
  • 3 Replies
  • 1458 Views
Sonic 3 Cz v2.0
Launch Base unglitched!
Hayate 
  • 41 Replies
  • 16647 Views
Sally In Sonic 2
"Where were you when the brains were handed out?"
E-122-Psi 
  • 38 Replies
  • 13899 Views
Sonic Boom: Rise of Lyric File Formats NeKit 
  • 1 Reply
  • 2341 Views
Need help ripping sound effects from the DC version of SA2 IndyTheGreat 
  • 4 Replies
  • 1714 Views
Sonic Heroes something MainMemory 
  • 44 Replies
  • 16550 Views
Dragon Crystal (SMS) Disassembly and Exploration
Yay Sega roguelikes
trykaar 
  • 12 Replies
  • 3856 Views
Sonic Adventure: Beta Chao Garden Restoration Vertrex 
  • 6 Replies
  • 2886 Views
Sonic Adventure 2: Battle Network
Online Multiplayer for Sonic Adventure 2 PC! (v3.0, 11/29/2014)
Morph 
  • 41 Replies
  • 29220 Views
[Tutorial] How to interactively add objects to SA2 levels flarn2006 
  • 2 Replies
  • 1174 Views
Shadow the Hedgehog general hacking discussion
Formely Shadow the Hedgehog test level found
ashthedragon 
  • 101 Replies
  • 42928 Views
How to fix speed issues in Sonic 2
A step-by-step guide
redhotsonic 
  • 12 Replies
  • 4645 Views
Saturn Homebrew 101
how do?
Lostgame 
  • 0 Replies
  • 1062 Views
How to extend the sound ID range in Sonic 2's sound driver
(properly)
Clownacy 
  • 0 Replies
  • 909 Views
Portal Gun in Sonic 2 snkenjoi 
  • 13 Replies
  • 6487 Views
Sonic Hacking Contest 2014 Results Spanner 
  • 26 Replies
  • 7836 Views
Fixed Water in the Chao Gardens (Sonic Adventure DX PC) IndyTheGreat 
  • 8 Replies
  • 4075 Views
Metal Sonic Hyperdrive
Metal Sonic in Sonic 1-3K included
LoneDevil 
  • 18 Replies
  • 6780 Views
Playable Metal Sonic in Sonic CD
Halloween release
LoneDevil 
  • 17 Replies
  • 5722 Views
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