Sonic 3C Delta

Discussion in 'Engineering & Reverse Engineering' started by Chainspike, Oct 13, 2021.

  1. Chainspike

    Chainspike

    Stealing rings since 1994 Member
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    Death Egg Zone
    S3C Delta
    [​IMG]

    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. With a high focus on accuracy, Sonic 3C Delta uses many of the functions, behaviors, and features found in Sonic 3A 1103, Sonic 3C 0408, Sonic 3C 0517, and other prototypes.

    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.
    This hack was a huge undertaking, so I hope that you all enjoy playing it as much as we did creating it!

    Download + Notes:

    The current release (v1.0) can be download here:
    https://shc.zone/entries/contest2021/454
    Keep in mind there may be some bugs that we missed during our testing. One such bug is a potential soft-lock in CNZ2. However, this can be remedied with the code RCNT-GJRA or 0399C0:2470. A future version of the hack will be released at some point addressing such concerns.

    Credits:
    • Programming: Chainspike, SyntaxTsundere, Rivet, Inferno, Zummone, Fred Bronze, vladikcomper, lavagaming1
    • Beta Testers: MechaKnuckles, Chainspike, sonic c32ttb1, Xebninmaj Sark, Zummone, Inferno, Volbby, JayKuriN, PhoniexVania, Sprite, EmmaNerd, SyntaxTsundere, Legobouwer9, Sumi, GigglyMan
    • Graphics: Chainspike, MechaKnuckles, Volbby,Trickster, SyntaxTsundere, BladeOfChaos, mcginnis03, Hexagonal, JoeyTheRabbit, EmmaNerd
    • Sound: Chainspike, MechaKnuckles, Inferno, Flamewing
    [​IMG] [​IMG] [​IMG][​IMG] [​IMG]
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    Video:

     
  2. BSonirachi

    BSonirachi

    Opa-Opa takes flight! Wiki Sysop
    I'm getting serious graphical corruptions trying to play this on real hardware, particularly once Knuckles appears at the start of a new game:

    20211013_175310.jpg

    And it only gets worse from there once I start doing things like the Spin Dash and Insta-shield:

    20211013_175419.jpg

    The hardware I tested this hack on is a Model 1 US Genesis running at 60Hz, with the game running off a Mega Everdrive Pro. I checked the hack again in BlastEm and the issues don't happen in there.
     
  3. Chainspike

    Chainspike

    Stealing rings since 1994 Member
    172
    83
    28
    Death Egg Zone
    S3C Delta
    That is... very peculiar. I frequently tested this hack on a Model 1 Genesis VA3 myself. The current demo also runs fine for me. Does this occur every time you play? Did you use any special codes while playing?
     
  4. BSonirachi

    BSonirachi

    Opa-Opa takes flight! Wiki Sysop
    It's happened every time I try to play it on the particular flashcart, and I've made sure things like cheats and the in-game menu were disabled.
     
  5. I’ve played all the way up to Carnival Night Act 2 and I’ve reached the part of the level after Knuckles hits his button.. while proceeding I just go through the Metropolis springs/bumpers to reach the 2 barrels that are blocking me from going down but I just die after passing them (the camera doesn’t continue going down)

    Is this supposed to happen? Or am I missing a hidden path or something?

    EDIT: Just watched someone else’s playthrough and yeah it’s not supposed to happen.. looks like a camera lock or something
     
    Last edited: Oct 17, 2021 at 4:07 AM
  6. Chainspike

    Chainspike

    Stealing rings since 1994 Member
    172
    83
    28
    Death Egg Zone
    S3C Delta
    Yes, it's a possible soft-lock that may occur. We unfortunately missed it while testing. I supplied a cheat code that patches the bug in the initial post. RCNT-GJRA or 0399C0:2470
     
  7. Brainulator

    Brainulator

    Regular garden-variety member Member
    I really enjoyed this and all the little references here. One of my favorites is the Hydrocity Zone - Act 1 theme. I was not expecting that!

    I'm looking forward to future builds!