G:Sonic & Knuckles

C:Infinite Rings|FFFE20:00C8|Parasyte|
C:Infinite Lives|FFFE12:0009|Parasyte|
C:Infinite Continues|FFFE18:0009|Datel|
C:Only Need 1 Blue Sphere For Chaos Emerald|FFE438:0001|Parasyte|
C:Stage/Act Modifier|FFFE10:xxyy|Parasyte|Quantity Digits for "xx"(stage):<br><br>04 - Flying Battery<br>07 - Mushroom Hill<br>08 - Sandopolis<br>09 - Lava Reef<br>0A - Sky Sanctuary<br>0B - Death Egg<br>0C - The Doomsday<br>14 - Bonus Stage(?)<br>15 - Bonus Stage<br>16 - Lava Reef [2]<br>17 - Death Egg [2]<br><br><br>Quantity Digits for "yy"(act):<br><br>00 - Act 1<br>01 - Act 2<br>02 - Act 3<br><br>Not all stages have acts 2 or 3.
C:Invincible (Only Tested On Sonic & Knuckles With Sonic 2)|FFB02A:0002|Viper187|
C:Stage Select (Press A + Start)|FFFFE0:0001|Datel|
C:Infinite Time|FFFE24:0005|Datel|
C:Have All Emeralds|FFFFB1:0007|Datel|

T:S&K - Sonic The Hedgehog 3 Codes

C:Ultimate Invincibility!|FFB029:6600|radical dreamer|Invincible, bullet shield, underwater breathing, and magnetism
C:Super Speed! (Sonic & Knuckles)|FFF761:6419|radical dreamer|
C:Super Speed! (Tails)|FFFEC1:6419|radical dreamer|
C:Flashing As If Super|FFF65D:FF00|radical dreamer|