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SCHG:Sonic & Knuckles Collection

From Sonic Retro


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This is the Sonic Community Hacking Guide for Sonic & Knuckles Collection, the PC version of Sonic 3 & Knuckles.
All data except for music is identical to the Genesis version but byteswapped (order goes 1,0,3,2 instead of 0,1,2,3).

Level Data

Level Layout

Main Article: SCHG:Sonic 3 & Knuckles/Level Editing#Level Layout
LocationLevel
259F34 Angel Island Zone Act 1
25A780 Angel Island Zone Act 2

Graphics

Art Tiles

These use the standard Genesis format and can be edited with any tile editor.

Start AddressEnd AddressDescription
1302B 1374A HUD Numbers, Debug Numbers
593DC 70A7B Tails
70A7C 73B3B Mini Sonic
73B3C 76E5B Mini Tails
76E5C 7A2DB Mini Knuckles
7A46C 7D28B Sonic Surfing (Unused)
7E180 84A3F Invincibility Stars, Puff of Smoke, Shields
95118 95AD7 CNZ Cannon
95AD8 96257 Drowning Countdown
96258 96757 SONIC/MILES BG
E7654 E7CB3 Some Knuckles Sprites
E91F4 EAD93 Butterdroid and Cluckoid
EC4D8 ECD43 Some Knuckles Sprites?
EE198 EF838 Hyudoro
F50F0 F776F Knuckles from HPZ cutscene
100F78 101AB7 Knuckles from SSZ
117244 117CE3 Rhinobot
11D5DC 11DFFB Bubbles
11EE54 11FF93 Clamer
1240A8 125087 Penguinator
127E28 129147 Flybot767
1313DC 1320DB Signpost
132D40 137C1F more Knuckles
137CF4 13A993 Big Ring
1A2EAC 1C2DCB Sonic
1C2F8C 1E2D0B Knuckles
1E2F0C 1E6BAB Sonic Extra
1E6BAC 1E94CB Tails Extra

RAM Editing

Main Article: SCHG:Sonic 3 & Knuckles/RAM Editing

The RAM starts at 08FF0000.

Sonic Community Hacking Guide
General
Number Systems | Sonic Music Hacking Guide | Assembly Hacking Guide | Subroutine Equivalency List | 68000 Instruction Set | SonED2 Manual | ASM-to-Hex Code Reference | VDP Documentation | Official Sega 32X Documentation | Official Sega CD Documentation | Official Sega Genesis Documentation
Game-Specific
Sonic the Hedgehog (16-bit) | Sonic the Hedgehog (8-bit) | Sonic Eraser | Sonic CD (prototype 510) | Sonic CD | Sonic 2 (Nick Arcade prototype) | Sonic 2 (Simon Wai prototype) | Sonic 2 (16-bit) | Sonic 2 (8-bit) | Sonic 2 & Knuckles | Dr. Robotnik's Mean Bean Machine | Sonic Triple Trouble | Sonic 3 | Sonic & Knuckles | Sonic 3 & Knuckles | Sonic & Knuckles Collection | Sonic Crackers | Sonic 3D: Flickies' Island | Knuckles' Chaotix | Sonic Jam 6 | Sonic Advance | Sonic Advance 2 | Sonic Advance 3 | Sonic Battle | Sonic Adventure | Sonic Adventure DX: PC | Sonic Adventure 2 | Shadow the Hedgehog
The Nemesis Hacking Guides
ROM: Sonic 1 | Sonic 2 | Sonic 2 Beta | Sonic 3

Savestate: Sonic 1 | Sonic 2 Beta/Final | Sonic 3

The Esrael Hacking Guides
Sonic 1 (English / Portuguese) | Sonic 2 Beta (English / Portuguese) | Sonic 2 and Knuckles (English / Portuguese)