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S3C 0517 Proto Hyper Stars

A Mod for Sonic 3 A.I.R

Updates

v1.1 6d
  • BugFix Hyper Sonic's Stars now go in front of him like the original animation
v1.1 - The "I Added a Line of Code I Missed When Originally Porting The Stars" Update!

Sonic the Planet

This mod restores the Hyper Sonic Stars from the Sonic 3C 0517 prototype.

Requirements

Dependencies and prerequisites required to use this Game file

  1. If possible, set flicker effects to "As original"

Files

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Credits

Key Authors
DaKingofCheckerz
DaKingofCheckerz Joined 7mo ago
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Scripter / Logic Porter
Original Authors
Sega
Original Sonic 3 Creators
Eukaryot
Sonic 3 AIR Creator
Special Thanks
Greenknight9000 avatar
Greenknight9000 username pic Joined 3y ago
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Home > Members > Yasho!!
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Original person who asked for the mod

Submitter

DaKingofCheckerz avatar
DaKingofCheckerz Joined 7mo ago
Offline
1,882 points Ranked 21194th
12 medals 1 legendary 1 rare
  • Returned 5000 times Medal icon
  • Returned 1000 times Medal icon
  • Returned 100 times Medal icon
  • One month a member Medal icon
  • 1 post awarded Exemplary Feedback Medal icon
  • 5 posts awarded Exemplary Feedback Medal icon
DaKingofCheckerz
Creator
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Development Info

Notes
This mod was a pain to develop, mostly because ASM sucks. 

Through the development of a currently unreleased mod, I decided to port the Proto Hyper Sonic Stars animation from the Sonic 3c 0517 prototype. However, since there's no disassembly of this prototype, I had to make my own (at least for the code that handled the Hyper Sonic Stars anim). To do this, I used Ghidra, a software analyzer developed by the NSA and this extension that allows it to disassemble Sega Genesis ROMs. Then, using the existing Sonic 3 & Knuckles disassembly and BlastEm to find the offset of the Hyper Sonic Star code and help with understanding the overall code flow of the game, I used Ghidra to disassemble the code that handled the Hyper Sonic Stars. Using this guide to help with understanding 68K assembly code, I then ported the logic for the Hyper Sonic Stars to Lemon script, including the emulation of ASM instructions not readily available in Lemon. After a bunch of debugging, double-checking the ASM, and trying (somewhat) random things, I finished the mod.

Game

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Category

Sub-category
Animations icon Animations
Super-category
Script Mods

License

Attributes

Development State
Final

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