Sonic Action Replay codes
These are the codes copied out of the book that came with my Action Replay cart. Maybe you can convert them into save state hacks yourself!
Method for conversion:
1. Remove Fs from beginning
2. Make a note of the last two digits of the
code
3. Remove the last three digits from the code to
get the address.
4. Use a hex calculator and add 2478 to the
address you have - make a note of the new address
5. Edit your save state with a hex editor and go
to the address which you calculated
6. Change the value in that address to whatever
the last two digits of the code were
7. Load your save state - the code will then be
active!
Note: If code contains more than two Fs at the beginning, only remove the first two.
Sonic 1
| FFFE120063 | 99 lives |
| FFFFE00001 | Enable level select |
| FFF760000C | Gives Sonic his speed shoes |
| FFFE090001 | Enable debug mode |
| FFFFE20001 | Invincibility |
| FFFFE10001 | Enable slow-motion mode (pause and press B) |
Sonic 2
| FFFE120063 | 99 lives |
| FFFE090001 | Enter debug mode |
| FFFFD00001 | Enable level select |
| FFFFB1000x | x = number of chaos emeralds |
| FFFE2100xx | xx = number of rings |
| FFFE190001 | Pseudo-Super Sonic |
| FFF65F00FF | White Sonic |
| FFB01E0000 | Sonic is always running |
| FFB02B0001 | Shield protection |
| FFFE30000x | x = last star post hit |
Sonic 1&2
| FFF76300xx | xx= acceleration factor |
| FFF76400xx | xx = braking factor |
| FFFE030001 | Restart act |
| FFFE0900FF | Enter debug mode |
| FFFE1000xx | xx = zone |
| FFFE11000y | y = act |
| FFFE1200xx | xx = number of lives |
| FFFE16000x | x = special stage number |
| FFFE1800xx | xx = number of continues |
| FFFE2100xx | xx = number of rings |
| FFFE2300xx | xx = Minutes |
| FFFE2400xx | xx = Seconds +1 |
| FFFE2600xx | xx = Score * 655360 |
| FFFE2800xx | xx = Score * 10 |
| FFF76000xx | xx = Maximum velocity of Sonic |
| FFF7620001 | Instant acceleration |
Because Sonic 1, 2, 3, and Sonic & Knuckles all use the same game engine, Action Replay codes that work on Sonic 1 will also work on Sonic 2, 3, and S&K! Likewise, you can hack the same areas in a save state for the same effect in any Sonic game!
GameShark codes
Here are some of the Gameshark codes I've created for Sonic Jam. Most of these were made by simply modifying the original Action Replay codes - can you spot the similarities?
To get these codes working I used a bit of trial and error, but if anyone can figure out the 'algorithm' for converting the Action Replay codes, please e-mail me!
So, without further ado, here are the codes:
Name of effect |
Code |
| Master code - must be on! | F6000924 C305 B6002800 0000 |
| Always have 255 rings | 160FFE20 00FF |
| No pause | 160FFE12 0062 |
| Cannot move without using spindash | 160FF760 FFFF |
| Better acceleration | 160FF762 0033 |
| Level select (S&K) | 160FFF86 0200 |
| Become Super Sonic (7 emeralds) | 160FFFB0 0700 |
| Turbo Sonic | 160FF760 1300 |
| Wood Zone (S2) | 160FFE10 0200 |
Note: Although there is a code for Hidden Palace in Sonic 2, I have not put it here (because it causes the game to freeze). If you really want to try it out, use the Wood Zone code but replace 0200 with 0800.
Is Sonic too easy for you? Try the following code to make the game harder!
|
160FFE20 0000 160FFE12 0100 160FF760 0500 |
This code will make the rings count as 0 (the Rings counter doesn't update properly), and give you only one life to finish the game with! What's more, Sonic is slowed down to half speed! Therefore the game is a lot harder - just one hit by a badnik will give Game Over!