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Sonic Delta

From Sonic Retro

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Sonic Delta
Version: v0.79
Last release: 2024/10/01
Status: Active
System: Sega Mega Drive
Original game: Sonic the Hedgehog 3 & Knuckles
Credits: Esrael Neto

Sonic Delta Origins is a groundbreaking ROM hack by famed Sonic scene member Esrael Neto, which combines Sonic the Hedgehog 1, Sonic the Hedgehog 2, and Sonic the Hedgehog 3 & Knuckles with some prototype elements restored.

The main version of this hack was formerly titled Sonic 2 Delta and was based upon the Simon Wai prototype; version 0.24 transferred the codebase to ‘revision 2’ of Sonic 2 from Sonic Compilation, and version 0.29 moved to the Sonic the Hedgehog 3 & Knuckles codebase, shortly followed by a name change to Sonic Delta 40 Mb.

Emulator Compatibily (Please Read Me)

Android Emulators:

  • You can play it In RetroArch in all cores you want.
  • MD Emu Doesnt Supports Delta Anymore,

in older Versions of MD Emu you could play normally, probably 1.5.50 or something. (ANY OTHER SIMILAR EMULATOR DOESNT SUPPORTS)

  • GenPlusDroid Supports normally, even through being a old Emulator.

PC Emulators:

  • You can also play it In RetroArch in all cores you want.
  • You can play in Kega Fusion normally even through being a old Emulator
  • on Gens is a bit unstable so its not recomended.
  • Also Supports Blastem Normally but not recomended.

Playing in a Emulator that Doesnt Supports Delta, a Blue Screen will appears saying you need Sega Mapper to play with (PLEASE DO REPORT THIS TO NETO BECAUSE HE HAS NOTHING TO DO WITH)

Zone-Specific Content

Many changes have been made to various zones, mostly implementing cut content from prototypes of the Genesis games. Such changes are listed here, in zone order:

  • Green Hill Zone: The Sunflower now uses a similar palette to the other flower, a small section is added to the end of the first act, with many loops and speed boosters.
  • Marble Zone: UFOs from the Sonic 1 prototype appear in the background, all 3 Acts have their Extra Paths from The Sonic 1 2013 Remake but Act 2 doesnt work too well his Extra Path with has some missing feature like: collision, Details and Objects, can be passed normaly.
  • Spring Yard Zone: In the end of act 2, if you jump before the slope ends you can acess the Sonic 1 2013 Extra Path with is the third Exit! containing a bunch of Rings.
  • Star Light Zone: In the start of Act 1 if you fly/glide before you get to the platform that have an 1UP Monitor, the 2013 Extra path can be found but Sonic cant Reach it. At the end of Act 1, in the Lower Path has a signpost, with in the normal game can't be seen soo at the end of Act 1 now contains 2 Signposts
  • Scrap Brain Zone: Act 3 uses the same Labyrinth Zone's prototype decorative elements.
  • Final Zone: 3 rings are provided at the start of the zone, and the player get out from the floor and in the end of the zone is now a cutscene instead of being user-controlled: After Final Zone's score tally, Tails (or Sonic if playing as Tails) will fly the Tornado onscreen, and the player character will hop on. The Tornado then flies through Emerald Hill Zone's background, before the Death Egg is shown rising out of a mountain in the distance. The Tornado finally lands at the start of Emerald Hill Zone.
  • Winter Zone: The Name of this Zone Here is called "Winter Hill" The graphics that are used are so similar (if not, almost identical) to Brenda Ross Mockup, with the layouts derived from the Sonic Triple Trouble - Robotnik Winter Zone. There are trees present but not Christmas trees. The BGM is a 16-bit recreation of Robotnik Winter Zone's music, and an original boss fight has been coded for it, named the "Penguin Blaster".
  • Wood Zone: The graphics are similar to what is seen in the Simon Wai prototype. It uses the Simon Wai prototype version of the Emerald Hill 2 player music as its BGM. It also has an original boss fight, named the "Saw Mobile".
  • Chemical Plant Zone: Small minor alterations were made, such as the loops having slanted corners from the Nick Arcade prototype.
  • Casino Night Zone: Uses the background from the final, and layouts graphics & his palettes from the Final Release. The slot machines use graphics from the Sonic 3 slot machine bonus stage for consistency.
  • Hidden Palace Zone (Sonic 2): The graphics are the same as those found in the Nick Arcade prototype and some from 2013 Mobile Version, with a layout extending from said prototype. A lift can be found on the long ramp; this was unused in the Nick Arcade prototype. This zone's boss is a near-perfect recreation of the Hidden Palace Zone boss from the 2013 Sonic 2 Mobile Version.
  • Sand Shower Zone: Uses graphics similar to the mockup screenshot. It's a desert-only setting. The zone has a custom boss fight against the Bead Worm, based on the boss of the same name from Sonic Chaos. The boss is set on a moving train in an homage to Mirage Saloon Zone.
  • Oil Ocean Zone: Takes its layout from the Knuckles in Sonic 2 with some extra objects.
  • Metropolis Zone: Uses the background from the Final Release, and its layout too.
  • Cyber City Zone: The Background uses the old Sonic Delta BG, The layouts, Foreground/layout are made by Hez, These new Objects are all made by Neto. Now we have 3 acts as well we have only have a shooting pig as a badnik and a Boss on the Third Act, and the boss is a reimagining of Sonic Mania's Studiopolis Zone boss.
  • Death Egg Zone (Sonic 2): 3 rings are present at the start of the zone when you beat it no animated cutscene is shown but only the tornado only can be seen.
  • Launch Base Zone: Sonic and Tails fight the Big Arm at the end of the zone, like in Sonic 3 alone. And when defeated, The unused Eggman sprites are used here, after this a cutscene (S3&K Title Screen) is used for the transition from Launch Base to Mushroom Hill, this does not happen if playing as Knuckles.
  • Death Egg Zone (Sonic & Knuckles): At the start of the Kyodai Eggman Robo boss fight, 3 rings are provided.
  • Doomsday Zone: an infinity symbol (∞) is added to Ring Hud it also fixes the Knuckles and Tails Glitchy Sprites

Game-Wide Content

In addition to all the zone changes above, Sonic Delta also has some changes that apply to the whole game.

  • Bonus stages: bonus stages are now accessed based on the remainder when you divide your ring count by 4: if the remainder is 0, you go to the slot machine; if it's 1, you go to Glowing Spheres; if it's 2, you go to the gumball machine; and if it's 3, you go to a Sonic 1 special stage with a 1-Up at the end instead of an emerald.
  • Special stages: the Sonic 1 and 2 zones now have Giant Rings hidden throughout the stage, like the S3&K zones. These rings send you to the half pipe stages from Sonic 2. Non-boss acts (excepting Scrap Brain act 2) have at least one giant ring hidden.
  • Hyper Tails: Tails can achieve a Super Form with just the Chaos Emeralds, which has no Super Flickies. His Super Emerald form is renamed to Hyper Tails, but otherwise remains functionally identical except to Super Flickies following him.

Story Of Each Character

Knuckles (or with Tails)

  • Knuckles story: starting a game as Knuckles or Knuckles + Tails plays his S3&K intro cutscene in Green Hill Zone. All bosses are piloted by the Eggrobo instead of Dr. Robotnik, including Flying Battery Zone. When flying onto Angel Island after defeating the Death Egg Robot, Knuckles is stopped by Mecha Sonic, much like he stops Sonic, which results in all the Chaos Emeralds being lost once again also reduces the levels you play.

Blue Knuckles

  • Blue Knuckles story: starting a game on Green Hill on Level Select plays his S3&K intro cutscene in Green Hill Zone. All bosses are piloted by the Eggrobo instead of Dr. Robotnik, When flying onto Angel Island after defeating the Death Egg Robot, Blue Knuckles is stopped by Mecha Sonic, much like his Red Version stops Sonic, which results in all the Chaos Emeralds being lost once again also reduces the levels you play.

Sonic Alone (or with Tails)

Sonic finds out that Dr. Robotinik is still doing his old tricks on South Island So Sonic Defeats Dr. Robotinik once again in Final Zone, Tails appears and Sonic jumps into his Tornado and go to Home in Emerald Hill, when getting near to home Sonic sees Something far on distance and its Death Egg doing its way to space so Sonic again go save the Island then Tails save him then he falls from tornado but luckily he has his board and he finaly arrives Angel Island, but Knuckles hit him and makes Sonic lost all the Chaos Emeralds. 

he can play all levels.

Tails Alone (with Sonic)

Tails finds out that Dr. Robotinik is doing his old tricks he maked to sonic on South Island So Tails Defeats Dr. Robotinik in Final Zone, Sonic appears and Tails jumps into his Tornado and go to Home along with Sonic in Emerald Hill, when getting near to home Tails sees Death Egg launching to space so Tails again go save the Island then Sonic save him then he falls from tornado but luckily he has his 7 emeralds and he finaly arrives Angel Island, but Knuckles hit him and makes Tails lost all the Chaos Emeralds. he can play all levels.

Beta Release Info

L L Hud

Theses letters identify in which plane and column the player is. 

L - Low (Low Priority / First Plane)
H - High (High Priority / Second Plane)

They are used as a Debug Tool and it only Appears in Beta Release and when you turn on a Cheat, but here some codes are already on so this will appears forever.

How to Download Beta Releases

first of all join Neto Games Discord Server so you can download it, you can find the link of the Server Here: https://info.sonicretro.org/Sonic_Delta#Discord_Server_.28Newest_Versions_Here.29 once you enter go to #Beta Releases Channel and Download the Newest Beta and done.

Beta Release Bad Things

Beta Releases are a Beta Version before the game gets Stable like 0.80, So Betas its a bit full of bugs to you report To Esrael Neto . and sometimes you cant even beat it.

Beta Release Good Things

In Beta Releases you have extra content and feature before others! and even see what is coming next to the game and suggest things!

Game Content

Act/Zone Transitions

  • Act/Zone transitions: Sonic 1 and 2 now have seamless act transitions like S3&K does. Depending on how the acts are laid out, this may involve a wall to hide a background position shift, a short section before the official level starts to get Sonic to a different starting position, or simply placing the two acts next to each other.
  • Zone transitions: most Sonic 1 and 2 zones have transition cutscenes like S3&K does. These range from simply using a Dash Panel to run off screen, to (at the end of Sand Shower Zone) entering the engine cabin of a train and riding it into Oil Ocean Zone the 2 only that doesn't have one is Wz to CPz ARz to CNz, Esrael Neto is planning on add this on future.

Options Menu

Version 0.68 introduced an options menu, which initially simply let you switch different music options in the game. It has since expanded to include several gameplay options as well.

  • Zone music options: Casino Night, Death Egg (Sonic 2), Hidden Palace, Metropolis, Oil Ocean, Sand Shower, Sky Fortress, Carnival Night, Ice Cap, and Launch Base zones all can toggle between their final and prototype versions (Simon Wai prototype for the Sonic 2 zones, Nov 3 1993 prototype for the Sonic 3 zones. Sand Shower "Prototype" music is Oil Ocean's final music, wheres Sand Shower's "Final" music is a remix of Yellow Desert Zone from Sonic Blast)


  • Boss music options: a wide variety of music can be selected for the Sonic 1 and 2 boss themes, the Sonic 3 miniboss theme can be swapped with its prototype/S&K version, and Knuckles's theme can be selected from the prototype, Sonic 3, or Sonic & Knuckles versions.


  • Misc music options: extra lives in Sonic 1 and 2 can be toggled between the S1/2 and S3&K jingles, and invincibility and Super Sonic songs in Sonic 1 & 2 can be set to a variety of options. Extra lives in S3&K can be toggled between the Sonic 3 and S&K versions, as can invincibility and Super Sonic songs (adding in the prototype Super Sonic music). Finally, the data select can be set to Sonic 2's level select music or Sonic 3's data select song, continue jingles and game over jingles can be toggled between S1/2 and S3&K, the score tally can be set to always use the Sonic 1 & 2 version or switch to the S3&K version in those levels, and the competition menu can toggle between its prototype and final songs.


  • Level title options: Spring Yard/Sparkling, Scrap Brain/Clock Work, Emerald Hill/Green Hill, Wing Fortress/Sky Fortress, Mystic Cave/Dust Hill, Cyber City/Genocide City, Aquatic Ruin/Neo Green Hill, and Mushroom Hill/Mushroom Valley zones can all be individually toggled between their final and prototype names.


  • Gameplay options: The maze and slot machine bonus stages can be set to have the original rotation from the official games, or smoother custom rotation. The half pipe and blue sphere special stages can be set to easier difficulties (half pipes requiring less rings to be collected, and blue sphere stages not speeding up). The Angel Island cutscene can be set to always use the prototype surfboard scene, or to only choose the surfboard scene if you don't have all Chaos Emeralds at that point, and the title screen can be toggled between the Sonic Delta screen and the Sonic 3 title screen. You can turn on and off Tails Assist And change the button to use like: A, B or C, and switch monitor behavior between Sonic 1/2 and S3&K (S3&K allows you to break monitors from beneath them, whereas Sonic 1/2 makes monitors fall down if you hit them from below).

Additionally, the options menu includes special credits for everyone who contributed to the hack; access to the "Get Blue Spheres!" minigame that's seen when locking on Sonic 1 to Sonic & Knuckles; and a sound test that includes music arranged from several Master System and Game Gear Sonic games, the Sonic 3D Blast boss music, and the Virtua Racing menu This sound test is where you can enter in Cheat Codes.

Cheat Codes

  • Level Select is 1-9-9-1-0-6-2-3)
  • Debug Mode is 1-9-9-2-1-1-2-4)
  • All Chaos Emeralds is 1-9-9-4-0-2-0-2 or 4-1-2-6)
  • All Super Emeralds is 1-9-9-4-1-0-1-8)
  • Bridge Zone is 1-9-7-7-0-9-0-5)
  • Blue Knuckles is 1-9-9-5-0-4-2-1)
Once you enter the Bridge Zone cheat code, its music will play and the Play "Bridge" option will appear below the sound test, allowing you to play both acts of Bridge Zone.

Double Interlaced Mode (2P Mode)

its the same 2P Mode from Sonic 2, but adapted to "Sonic 3 & Knuckles" routine with allows for fast respawning. 

it has seven zones: Bridge, Labyrinth, Emerald Hill, Winter Hill, Casino Night, Hill Top and Mystic Cave.

Labyrinth doesnt have Water and Hill Top has his Animated Background. Special Stage has nothing Special, just same one.

Player 1 can select between Sonic and Knuckles while second player only plays as Tails.

Blue Knuckles

You can Play as Blue Knuckles if you type 1,9,9,5,0,4,2.1 on Sound Test of the Options Menu its just knuckles, but blue.

Helpful Information

Discord Server (Newest Versions Here)

Please go to the official website for latest version. You can also visit the Neto-Games Discord for Beta Updates, and helping him finding bugs.

Check Out his Discord Server (Neto-Games) https://discord.com/invite/mhsS6QbW

Credits

  • NETO - PROJECT DIRECTOR
  • META - YELLOW DESERT MUSIC
  • HEZ - GENOCIDE CITY RECREATION
  • NINEKO - 8BIT MUSIC CONVERSION
  • PUTO - 8BIT MUSIC CONVERSION
  • CHRON D - 8BIT MUSIC CONVERSION
  • VOLBBY - ADDITIONAL GRAPHICS
  • THE TAXMAN - SSZ GRAPHICS
  • MASTERED REALM - S2B EXPANDED TITLE SCREEN

Downloads

Prior versions

  • Versions in between 0.39a and 0.59, 0.61 to 0.64, 0.66 to 0.74, and after 0.75 are not uploaded at this time, please visit the link above to see if a new version is available!
Download.svg Download Sonic Delta
File: Sonic_Delta_v075.rar (2.89 MB) (info)
Current version: v0.75

See also

External links

Sonic Retro
Release thread at Sonic Retro.

References

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