This is the Sonic Community Hacking Guide for Knuckles' Chaotix.
Palette Locations
Genesis Format
| Palette Offset |
Description
|
| $0066C8
|
Credits - Flames
|
| $006E18
|
Sound Test - Foreground
|
| $006E98
|
Sound Test - Amy
|
| $2B3CF0
|
Amazing Arena - Morning / Day
|
| $2B3D70
|
Amazing Arena - Sunset / Night
|
| $2B3EF0
|
Techno Tower - Morning
|
| $2B4070
|
Techno Tower - Day
|
| $2B41F0
|
Techno Tower - Sunset
|
| $2B42F0
|
Techno Tower - Night
|
| $2B4470
|
Marina Madness - Morning
|
| $2B44F0
|
Marina Madness - Day
|
| $2B4570
|
Marina Madness - Sunset
|
| $2B45F0
|
Marina Madness - Night
|
| $2B4670
|
Introduction - Morning
|
| $2B46F0
|
Introduction - Day
|
| $2B4770
|
Introduction - Sunset
|
| $2B47F0
|
Introduction - Night
|
MARS Format
| Palette Offset |
Description
|
| $00001924
|
HUD (maybe Sonic, Tails)
|
| $0000E7C4
|
Espio's Rotating Palette
|
| $0022921A
|
Mighty The Armadillo
|
| $0022923E
|
Knuckles The Echidna
|
| $0022925C
|
Charmy The Bee
|
| $0022927E
|
Vector The Crocodile
|
| $002292A0
|
Heavy The Mechanic
|
| $002292BE
|
Bomb The Mechanic
|
| $002292DC
|
Espio The Chameleon
|
| $002299D6
|
Sega logo
|
To convert from standard RGB colors to MARS colors, use HBGDRGB2GBA32XCC.
Art Locations
Genesis Format Art, Nemesis-compressed
| Art Offset |
Description
|
| $22E100
|
8x8 Menu Font (same as in Sonic Crackers)
|
| $2C2DC8
|
Sound Test Amy Rose
|
| $2C4B20
|
Sound Test letters/numbers
|
| $2C7818
|
Sound Test art
|
| $2CE004
|
Special Stage background spheres
|
| $2CFA40
|
Bonus Stage background
|
MARS Format Pointers
Note: All pointers for these locations add $2000000 to the listed offset.
| Art Offset |
Description
|
| $0A0504
|
Mighty
|
| $0B18BC
|
Knuckles
|
| $0CB3B4
|
Charmy
|
| $0D4E44
|
Vector
|
| $0F1130
|
Bomb
|
| $0F6A18
|
Heavy
|
| $101304
|
Espio
|
| $11B088
|
Mighty ring and hand
|
RAM Locations
These locations are offset from the base of RAM ($FF0000, which is mirrored to $FFFF0000).
| RAM offset |
Size |
Description
|
| $D460
|
$40 words
|
Genesis palette cache.
|
| $DFDE
|
Word
|
Current game mode. Known values:
- $00: Sega screen
- $08: Title screen
- $18: Level
- $20: Special Stage
- $38: Demo
- $40: Options Menu and Items
- $50: Bonus Stage
|
| $DFE0
|
Word
|
Current game submode.
- Sega Screen: used to determine which part of the animation to play.
- Options Menu and Items:
- $00: Options Menu
- $04: Sound Test
- $08: Color Test
- $0C: Sound Test (jumps to the same location as $04)
|
| $DFF2
|
Word
|
Current level:
- $00: Botanic Base
- $01: Speed Slider
- $02: Amazing Arena
- $03: Techno Tower
- $04: Marina Madness
- $05: Isolated Island (Tutorial)
- $06: Isolated Island (Introduction)
- $07: World Entrance
- $09: Bonus Stage
- $0A: Special Stage
|
| $DFF4
|
Word
|
Current stage number; starts from 0.
|
| $DFF6
|
Word
|
Current time of day:
- $00: Morning
- $02: Day
- $04: Sunset
- $06: Night
|
| $E008
|
Word
|
Number of rings.
|
| $FCE6
|
Byte
|
Current pan of the ring sound; positive is left, negative/zero is right.
|
| $FCFC
|
Byte
|
Current song; only set by a certain function and only used by the Bonus Stage to replay the previous song when exiting.
|
| $FFD0
|
Byte
|
Current demo number (0-4).
|
Other ROM Data
Genesis VDP Register List Locations
Knuckles' Chaotix reloads VDP registers with each game mode. At each address is a list of word corresponding to the register/value words sent to the VDP (unmodified). A word $0 ends the list.
| ROM offset |
Description
|
| $B34
|
Sega screen
|
| $3736
|
Title screen
|
| $4CE6
|
Level
|
| $5A8A
|
Special Stage
|
Contributors
