All Games

New Content:
New Sprites For Sonic.
Peelout SFXs.
S3 Dacs and new musics.
A lot of fixes and New art!
Errors:
Bugged Title Screen.
Some errors in Sonic Sprites.
Graphic errors in SLZ.

CREDITS:
Project Leader: PeanutNoceda (me)
Coding: PeanutNoceda, AleDrawer2008, Blue Gamer, EddyTF, Dawid, Carlos.
Art: EddyTF, PeanutNoceda, AleDrawer2008.
Music: JX, MainMemory (i get some songs for KEH source code), AleDrawer2008.
Some Music Mixes: PeanutNoceda.
Beta Testing: Blue Gamer, Cesar315, Pacca, AleDrawer2008.
Special Thanks to: Haru, Millie, Clownacy, Devon, Joao, Flamewing, Mainmemory, Selbi, DeltaW, Inferno, Red2010, Vladikcomper, Speems and RetroKOH.
And More!

Controls: Press A to not die.

CW: themes of isolation, mild flashing lights, and visuals that may trigger trypophobia.

Created in just 12 days for Halloween 2024, this short ROM hack is all about how much of an eerie atmosphere can be achieved in Sonic 1 by removal alone.

Every action carries an immediate, permanent consequence. Collecting a ring, defeating an enemy, finishing a level—each choice causes something in the game to vanish forever. The more Sonic interacts with his surroundings, the emptier the world becomes, leaving him to wander through a silent, desolate landscape. There are no jumpscares, no hyper-realistic blood, and definitely no Sonic.exe—just a quiet, decaying world. Will you keep moving forward, even as everything around you fades into meaninglessness? Or will you look for an escape?

Thanks to: ajcox, Chaotic SoFa, vladikcomper, zakku, DeltaW

P.S.: Inspired by Spindαsh in Sonic 2 SMS and Half-Life 2: Alone Mod. Also, I would've loved to call this hack Sonic Eraser, but unfortunately that name is already taken. At least it served as a nice palette cleanser after working on Sonic ERaZor 7 for ten months, heh.

Sonic the Hedgehog: Isle of Magnetic Artifacts is a sonic hack made By Neo Team Kyukyoku

is a hack which aims to overhaul Sonic 1 using a Japanese-inspired aesthetic. The main feature of this demo is Blossom Gardens Zone, the resting area of the isolated, star-god worshipping Kuratranos tribe. BGZ is a fast-paced experience littered with swift-acting enemies, height-granting gimmicks, driving music, and advanced graphical effects. This new zone can be traversed with three playable characters: Sonic the Hedgehog, Miles "Tails" Prower, and Knuckles the Echidna. Sonic, in particular, features a set of unique sprites, the dropdash ability, and a new companion: Abbey the Flicky. Abbey can pick up nearby rings and circle potential targets for Sonic, including hidden monitors.

Neo Team Kyukyoku Members

• AngelKOR64: Character programming
• Chron D: Music arrangement
• DeltaWooloo: Level layouts, music arrangement, object ports, programming, sound effects
• DaxKatter: Music arrangement
• Dio-ZX: Character art, object art
• Drag109: Level art
• fuzzy: Level art, programming
• iced t: Level art, object art
• Inferno: Level layouts
• Inktitious: Level art
• Jerry: Level layouts
• KatKuriN: Level art
• KGL: Level layouts
• Kurk: Team Leader, level layouts, music arrangement, music composition
• ManiacShard: Object art
• NaotoNTP: Object art
• ProjectFM: Creative direction, level art, music arrangement, music composition, programming, story planning
• Raendom: Programming
• Rivet: Programming
• two^: Concept art
• yami: Level layouts, music composition

Former Members

• AmzroSevca: Concept art, story planning
• Gemini0: Former team leader, general art, level layouts, programming
• jrm1007: Concepts, object art
• Haz Rabbit: Concept art, programming
• lavagaming1: Programming
• NotQuiteHere: Music arrangement
• poly: Logo, music arrangement
• Mr. Gandy: Character art
• XGSOAP: Character art

Playtesters

• Accel
• BladeOfChaos
• Certainly Glitchy
• Cosmic Eternity
• DaxKatter
• fengish
• GGK912
• Hooded Edge
• KCEXE
• KNIJohn
• Matty
• Meara Blanchette
• MCTravisYT
• Professor Renderer
• PX
• Sleekflash-16
• Sr Paradoxo
• soapyy
• TheInvisibleSun
• UnusualSeeker

Resources

• AsuharaMoon: Wind-Up Koi sprites
• AURORA☆FIELDS: SMPS2ASM and AMPS
• CartoonsAnimate22: Tails and Knuckles sprites
• CuckyDev: GHZ ball base
• flamewing - Ultra DMA Queue + optimized Kosinski (improved by vladikcomper and MarkeyJester) and Enigma decompression code
• Lone Devil: Metal Sonic sprites
• MainMemory: SonLVL and Drop Dash programming guide
• MarkeyJester: DualPCM and sound test
• Mikel Nash: Sonic 3-style super sonic sprites
• Observer: Sprite rips
• ShibaMayo: ShibaSaturn sprites
• snkenjoi: Flex 2
• The Eighth Bit: Space Queens MIDI
• TheOneMusaab: Sonic 2: The Alternative Sprites
• tildearrow: Furnace
• Teck: Super Mario Land - Ending Theme MIDI
• vladikcomper - optimized Nemesis decompression code
• ValleyBell: mid2smps, SMPS Converter, SMPS Research Pack
• VladislavSavvateev: DMF2AMPS

Assets From:

• Capcom no Quiz Tonosama no Yabou
• Cave Story
• Freedom Planet
• High Seas Havoc
• Mega Man Series
• Michael Jackson's Moonwalker
• Ristar
• Sangokushi Retsuden: Ransei no Eiyuutachi
• Shinobi III
• Sonic Series
• Touhou Project Series

A Sonic the hedgehog hack made by Scrap Sorra

Story:

The evil Dr. Robotnik has been meddling with time itself! In order to stop him and prevent a bad future for South Island, Sonic must travel through time and stop the Doctor's evil schemes!

Featuring 9 acts filled with exploration, platforming, and speed, take control of Sonic to put an end to Dr. Robotnik's plot!

Credits:

• DeltaWooloo - Coding, Music, SFX porting
• ProjectFM - Coding
• TheInvisibleSun - Coding, Music
• Djohe - Help porting Sonic 2's ObjD9
• MrJoker27 Productions - Music
• Naoto - CD extended camera guide
• Konrad - Mozzietron enemy ported to sonic
• Inferno - Air Roll guide
• Yami - After-image object
• vladikcomper - Advanced error handler
• Flamewing - Flamewing's DMA transfer
• Sonic CD, Knuckles' Chaotix: Various art, Ecco 1/Ecco 2: Text, various art.

This rom hack main focus is to reinvent how sonic .exe is to the public such as adding game play to the game Unlike sonic forces because the original was inspired by sonic forces ? and also adding a bit of story and new character (not playable characters but characters related to story) this demo includes 2 short levels that being Hill act 1 ,Hide and seek

all of the assets in this demo was made from scratch such as coding and sprite work etc besides a few things borrowed from the original game such as title screen and other stuff

For now you are gonna be able to play as tails will you be able to survive sonic .exe ?

there is also hidden secrets in the levels be aware thanks for playing this hack

tools used

1. Sonlvl (level design )
2. Flex2 ( sprite work )
3. (Context Text editor )

• All orignal Credits Goes to SEGA And Characters by Sega

• Credits

1. Lavagaming1
2. ChronD
3. PikaNoob
4. Sonic dutch hedgehog
5. MrGrandy
6. Miles tails Prower

A hack made by Roebloz Based on Sonic 1

Regular Credits:

• Roebloz: Hack idea, level design, main sprite editing, instrument editing, zone naming, main media stuff.
• TheLesha: Technical Stuff (Zone Order, Zone Names, Splash Screen Implementation, sprite implementation via HEX editing)
• The Game Apologist - Giving me the conviction to give Silver Sonic justice.
• Silver Sonic - For being a cute little Sonic robot!

Graphic Credits:

• Roebloz: Making the player sprites out of Cancer Edition's spritesheet and vanilla S1 Sonic's sprites, recoloring most of the sprites to fit the palette, making said palette, making the ending, life icon title screen and signpost Silver Sonic art. (Also making the Green, Orange and Blue recolor of Mario)
• TheLesha: Implementation of all sprites into the ROM via HEX editing (Except for the player sprites)
• Cancer Edition: Making the original Silver Sonic spritesheet that was used as base for most player sprites.
• Dolphman: Custom Sonic Mega Drive-style Eggmobile sprites.
• MarkyJester, mrcat-pixel and Cinossu: Splash screen and SHC logo
• Unknown: Custom SEGA Letters, not included with spritesheet.
• Master Emerald Sprite - Mod.Gen project

Sonic 1 Definitive is a hack named by RadiantNexus Team, which seeks to reimagine Sonic 1 by rearranging levels. remixing music, adding features from future games, and readding scrapped ideas in new and interesting ways.

Major features:

• 3 acts of reimagined level design, including one act that has yet to be fully reimagined in any other hack.
• A miniboss.
• Massive art overhaul all over the place.
• Music made by ProjectFM and MechaKnuckles.
• Menus!
• A custom splash screen.

There's been massive engine overhauls as well, including the Sonic 3 level layout format for massive levels, and the Sonic 3 object manager to go alongside this.

Sonic 1 Flash Flood is a ROM hack of Sonic the Hedghog that features new palette, audio, zone layout and special stage modifications, in addition to new gameplay mechanics. Flood waters rise and recede at random all over the island, significantly changing how the island is navigated. Can you make it through?

Features:

• Level Design - In addition to the rain effect and water palettes, level layouts are tweaked to account for water physics.
  • Marble Zone has altered lava physics, and Acts 2 and 3 have new shortcuts.
  • Being entirely underground, Labyrinth Zone has been affected a bit...differently by the change in weather.

• Goggles Monitors - These take the place of air bubbles, and are thus unlimited. Use as many as you need!

• Badnik Behavior - The rain and flooding is even affecting Eggman's robots and hazards, causing them to malfunction! Some are even enhanced by the chaotic weather. Strangely, most fire-related hazards (such as flamethrowers and fireballs) remain unaffected, defying all logic.

• Special Stages - New special stage gameplay style, with art and music changes. Get Yellow Rings!

• Water Physics - Some general quality of life improvements to the water physics, and bug fixes are included here (with a few exceptions, for gameplay reasons).

• Level Select - Available upon pressing start, no code required. Feel free to check out any zone or special stage at your leisure.

Known Bugs:

• Minor graphical bug in the special stage background, and on the results screen.
• In the Special Stages, blocks at the edge of the screen being loaded in flicker, due to the amount of objects.
• Level art mapping glitches crop up on rare occasion.
• Labyrinth and Scrap Brain's palette cycles are bit buggy at the moment.
• There are a couple of lingering walk-jump bugs here and there

Planned Features

• Improved object optimization
• Importing Sonic 2-3's child sprite system
• Underwater sound/music mode
• Even more environmental effects.
• More significant changes to bosses, Final Boss, etc.

Sonic 3C Delta is a hack of Sonic The Hedgehog 3 (& Knuckles). It is a compilation of early/unused content for Sonic The Hedgehog 3, including early music, layouts, graphics, concepts, and more.

The hack currently includes all the zones from the first half of Sonic 3, including Flying Battery Zone in its original placement and the 3 Bonus Stages.

General Changes:

• Original zone order.
• Improved prototype soundtrack.
• Prototype inspired level layouts.
• New title screen and menu art.
• New cutscenes.
• Prototype graphics and art.

Credits:

Programming:

• Chainspike, SyntaxTsundere, Rivet, Inferno, Zummone, Fred Bronze, vladikcomper, lavagaming1

Beta Testers:

• MechaKnuckles, sonic c32ttb1, Xebninmaj Sark, Zummone, Inferno, Volbby, JayKuriN, PhoniexVania, Sprite, EmmaNerd, SyntaxTsundere, Legobouwer9, Rodotnik, Sumi, GigglyMan

Graphics:

• Chainspike, MechaKnuckles, Volbby, Trickster, SyntaxTsundere, BladeOfChaos, mcginnis03, Hexagonal, JoeyTheRabbit, EmmaNerd

Sound:

• Chainspike, MechaKnuckles, Inferno, Flamewing

Hellfire Saga By Hardline Team is a hack based on sonic 3 is part of sonic hacking contest 2021, please consider supporting the team if you like it.

Sonic finds his realm transformed, merging with the demon realm to form a nightmarish scape littered with legions of hungry-for-blood demons. Help Sonic to escape from hell and return to his home world!

DEMO

General credits:

• Narcologer - Project lead, programming, main game and story concept, some boss and enemy sprites, custom powerup
• TheBlad768 - Main programming, creating the HAGE engine, some boss and enemy sprites, cutscenes, blood, weather effects, SEGA and title screen implementation, sound driver modification.
• FoxConED - Hardline team leader, music creation, programming, sound driver modification.
• mrcat-pixel - Art direction, level design, tileset and background art, sprite art, writing help.
• VladislavSavvateev - Programming, HardLine screen implementation, sound driver modification, tool programming.
• AURORA☆FIELDS - AMPS sound driver, programming, moving lava and parallax engine implementation.
• Gerry Trevino - Composing the main theme.
• GENATAR_i - Music creation.
• Ralakimus - Programming, HUD implementation.
• Hotmilk - Writing.
• VAdaPEGA - Sprite art.
• Trickster - Sprite art.
• Sergey ESN - Sprite art.
• Nat the Porcupine - Sprite art.
• Sosocheck69 - Concept artist.
• ProjectFM - One of the bosses and its sprite art.
• cuberoot - Programming development tools.
• N-BAH - Programming development tools.
• SHooTeR - General help, programming development tools.
• Solareyn Eylinor - Directing cutscene animation.
• malamus - Testing and feedback.
• Vladikcomper - Programming, improved Kosinski, Nemesis alghorithms, Advanced Error Handler.
• Flamewing - Ultra DMA Queue, improved Kosinski Module alghorithm.

Featuring enemies and bosses from:

• Castlevania (Bloodlines, Rondo of Blood, Dracula X, Symphony of Night, Super ~ 4, Java);
• Ghosts n Goblins (ARCADE), Ghouls n Ghosts, Super Ghouls n Ghosts;
• Kid Chameleon;
• The Legend of Zelda: A Link to the Past;
• Splatterhouse 2;
• Demon's Crest;
• Sparkster: Rocket Knight Adventures 2;
• Castle of Illusion Starring Mickey Mouse;
• GS Mikami,

which have been edited by sprite artists to fit the game's artstyle where time permitted; additionally, featuring character sprites from:

• Shinbaloonba - Sonic;
• Gabriel_aka_Frag - Rouge;
• Skylights - Tikal;
• teamhedgehog - Honey;
• EchidKnux - Death,

also edited where possible. (Please excuse the messy placeholders, we're working on it!)

Featuring music from:

• Actraiser;
• Rusty;
• Castlevania (Super ~ 4, Portrait of Ruin, Symphony of the Night, Aria Of Sorrow)
• Elemental Master;
• Ultimate Mortal Kombat 3;
• Dragon's Fury;
• Gerry Trevino;
• Periphery,

covered by our musicians.

Sonic ReOne is a hack created by DeltaWooloo which takes Sonic back to where he originally started 29 years ago in South Island. This hack features new palettes that cycle through every act just from bright morning to dark evenings. Iconic features from classic Sonic games arrived in this hack (see the features below) Eggman pumped up his bosses to make it harder when you annoy him by hitting him. The level design is a mix between linear and platforming which is something you see in Sonic games, but be careful that you don't go too fast. Eggman placed badniks and springs to prevent you from going to the end. The music is catchy and fun to listen to and suits the mood of the zones.

CREDITS

Level designs: DeltaWooloo with some help from Dj. Joker27

Music composers: Dj. Joker27, RuthlesstheHooman, TheInvisibleSun and JoenickROS, LackofTrack

Palette designers: DeltaWooloo, RuthlesstheHooman, maple_t and KCEXE

Coders: DeltaWoolooand RandomName

Title Screen logo made by me

People who helped me along the way: Iso Kilo, AUORA_FIELDS (Natsumi), MarkeyJester, Samey, ProjectFM, Tanman Tanner, Trickster, Inferno, RuthlesstheHooman, nineko, KCEXE and Dark Lips

Spindash guide by Lightning, Puto, shobiz, Mecury

Shield attract and bug fixes from Mecury's ReadySonic

Peelout and CD spindash by LuigiXHero and Mecury

Sonic CD roll jump and slow ducking, title screen centering and fix Sonic 1 debug by Iso Kilo

Fade to white routine and removing water surface object by ProjectFM

Air roll by Inferno

Sonic 2 spring object, coconuts and stars by RandomName

Correcting PAL music by Crash

Starposts by Shooter

Sonic 3 and CD SFX: KCEXE

Route 113 SMPS by ProjectFM

Snake Man SMPS by ValleyBell

Sonic Heroes Special Stage 2 by S_T_D

A few bug fixes and Nemesis and Kosinski decompression by vladikcomper

Sonic the Hedgehog 2 - Anniversary Edition is an enchantment mod of Sonic 2 made by SophieDude

Credits

Original MIDI Version of Chemical Plant Act 2 from vgmusic.com - Created by Kentaro - Converted to SMPS and Edited by Me

A Really old version of Clownacy's Clone Driver, The only reason that I haven't change to a different sound driver is because I'm lazy

Mega PCM By Valdikcomper

Eggman has been possessed and turned into Devil Eggman and has cursed South Island. Find the Chaos Pumpkins and undo the curse.

This hack features art and music edits, new level gimmicks, and boss edits. Since 2015 I released a new build each year for Halloween. This however will be the last yearly build. While there are still changes and improvements that can be made, I am ready to move on with other projects.

Since the last time this was entered into the contest I have made more changes to the art, updated some of the music, added new level gimmicks, adjusted a couple of the bosses, and fixed several bugs.

Credits

~ASM~

MegaPCM ~ Vladikcomper

Advanced Error Handler and Debugger ~ Vladikcomper

Optimised Scroll routine for Labyrinth Zone ~ MarkeyJester

Corrected Sonic 1 PAL Music Tempo ~ Crash

~Sounds and Music~

Optimised Sound Effects ~ MarkeyJester

Mystic Cave Zone port from Clone Driver v1 ~ Tweaker / Puto

~Special Thanks~

MegaGWolf

A sonic 3 hack made by JoenickROS

Its been about 3 years since I last released this, now for some of you who have played this before you probably wont feel like much has changed since the last release but there has been quite a few additions and a lot of bug fixes that I will list towards the end of the hack description.

Levels: Bayside Atoll Zone (Act 1), Nightside Atoll Zone (Act 2), Frost Mountain Zone (Act 1), Frost Cavern Zone (Act 2: New), Neon Lights Zone (Act 1), Carnival Street Zone (Act 2), Wacky Workbench Zone (only one act), Dystopia Zone (only one act), Massacre Temple Zone (Act 1), Tidal Tempest Zone (Act 2), Mushroom Cavern Zone (Act 1), Mt. Inferno (Act 2), Forgotten Cave Zone (only one act), Lakeside Garden Zone (Act 1), Sunset Garden Zone (Act 2), Locust Dunes Zone (Act 1), Midngiht Dunes Zone (act 2), Ancient City Zone (only one act)

Player Modes: Sonic and Tails (default option go into the options from the title screen to change it), Sonic (alone), Tails (alone), Knuckles (alone), Knuckles and Tails, Shadow (alone), Tails and Sonic, Tails and Knuckles, Sonic and Knuckles, Knuckles and Sonic.

Sonic And The Mystic Gems (previously known as Sonic 1 Harder Levels) is a hack made by Eduardo Knuckles and his team Harder Project of Sonic the Hedgehog on the Sega Mega Drive. It began in 2005 with the simple purpose of being a generic Sonic 1 for Sega Genesis with increase difficulty and revamped versions of the original levels. But now, it's going to present a completely new gaming experience with a new style of level layouts full of paths everywhere among new enemies, new objects, new character abilities, new menus, completely different styles of the Sonic 1 special stages and much more!

Credits and Special Thanks

• Mistergambit for his Spring Yard Zone and Labyrinth Zone level art used in the game.
• Tweaker for his information regarding music importing, bug fixes and the speedcap removal.
• HPZMan for the new sound driver instruments and the dynamic tile-set system.
• Selbi for some new exclusive ASM things and improvements.
• Master3k for sending and fixing some music.
• nineko for creating the xm3smps tool which was essential for the creation of some songs. Special credits to him for the different songs per act system used.
• SCAA for their art.
• Puto for his tutorial to add Spin Dash.
• FraGag for his tutorial to fix the spike bug.
• SonicVaan for beta testing.
• HCKTROX for the lead programming and bug fixing.
• GenesisFan64 for the save screen menu, for some fixes related to the fade-out and others.
• MarkeyJester for lots of important code and a whole load of others.
• Irixion for beta testing.
• PsychoSk8r for his the dynamic palettes tutorial.
• Esrael for fixing essential things in the new sound driver.
• Prilix Bõkun for bug searching and beta-testing
• Estlib for various art stuff related to levels and for additional help with creation of gimmicks and objects
• DJ. Joker27 for his very big importance in specific level and misc music
• Mighty Arnold for additional support with beta-testing and level layout design

Kenny0989 for additional support in the music department Special credits to Harder Project's Team by all the useful exclusively things used in the project.

Sonic Powered is a Sonic the Hedgehog rom hack made by SMS Alfredo.

Sonic 2 but keep Tails or else is a hack by GT Koopa where you should keep Tails from respawning or else you will recieve a Game Over

Sonic.EXE AgustinBazan683 Edition is Sonic 1 hack made by AgustinBazan683

Yoshi in Sonic The Hedgehog 2 (by Xenowhirl), made based on the games Sonic the Hedgehog 2 and Yoshi's Island.

The game brings several modifications, including new enemies and adaptations in the phases.

Sonic 2: The Alternate Sprites is a Sonic the Hedgehog 2 ROM Hack which changes some of Sonic's and Tails' sprites, including Super Sonic (however with Super Sonic there is a glitch, which causes crashing after falling from a spring).

Credits: The One Musaab - Spriter, Implementing Sprites