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Save State Hacking Guide by Thundergod

Version: 2.1 | Updated: 06/11/01

Phantasy Star 4 Save State Hacking Guide
Usable with the Genecyst emulator (.gs0 style save states)
Written by Thundergod (dragon_god_inferno@yahoo.com)

Version 1.0: First draft.
Version 1.1: Minor corrections made.
Version 2.0: New offsets added for skills and techniques with matching value 
tables, all thanks to Sulphuric Ghost.
Version 2.1: More minor changes.

Unpublished work Copyright 2000 Thundergod

This FAQ is for private and personal use only.  It can only be reproduced 
electronically, and if placed on a web page or site, may be altered as long 
as this disclaimer and the above copyright notice appears in full.  This FAQ 
is not to be used for profitable/promotional purposes; this includes being 
used by publishers of magazines, guides, books, etc. or being incorporated 
into magazines, etc. in ANY way. This FAQ was created and is owned by me, 
Thundergod <dragon_god_inferno@yahoo.com>. All copyrights and trademarks are 
acknowledged that are not specifically mentioned in this FAQ.  Please give 
credit where it is due.

Thanks go to:

Ragnarosen (ragnarosen@hotmail.com) for the form of the following paragraph, 
and for the section on hexadecimal.
Kao Megura (kmegura@yahoo.com) for the copyright statement.
SulphuricGhost sulphuricghost@hotmail.com for the offsets and tables for 
skills and techniques.

To download ROMs and emulators for all systems, go to www.pe2000.net.

To alter the statistics of your characters through hacking into your save 
state (or .gs0 file), you'll need to go to Break Point Software 
(http://www.bpsoft.com) and download a program called "Hex Workshop." Once 
you're finished downloading and the program is finished running SETUP.EXE 
automatically, open Hex Workshop and use it to open any Phantasy Star 4 .gs0 
files you may have.

NOTE: This Hacking Guide was designed for use with the Genecyst emulator, and 
was hacked with Break Point Software's Hex Workshop. This guide will not work 
with any other programs, as each one works with the save states differently.

-----------------------------------------------------------

OFFSETS:

Most of the questions I get anymore have to do with offsets – what are they, 
how do I tell what I'm editing, I don't understand hacking in general, etc.  
As far as I am concerned, the help Section is as thorough is it is going to 
get.  The only way I could explain it any better would be to point at the 
screen and say, "See that there?  That's what you need to change!"  Since I 
can't do that, you'll just have to be on your own if you need any help more 
detailed than what I have included below.

If you REALLY cannot figure out offsets and hacking on your own, read the Hex 
Workshop help file.  For the best explanation (with pictures), open the help 
file and click on the Find tab.  Search for offset, click on the first option 
(there should be four), and click on "How to Hex Edit" in the box below.  
Read over that very carefully, and you should have no trouble with hacking 
and finding offsets after that.  If you STILL do not understand, then odds 
are hacking is, quite seriously, not for you.  If you have reached this stage 
and do not understand, do not e-mail me, for I will not be able to help you.  
Do not ask me to hack files for you; I will ignore any request to do so.

-----------------------------------------------------------

Help!  Answers for commonly asked questions:

You don't use a cartridge in the Genesis for this process.  Have you heard of 
emulation?  An emulator is a program on your PC (or Mac) that you can use to 
play the games you have.  First, you need to download an emulator (Genecyst 
is the best, in my opinion) and Phantasy Star 4 ROM.

Once you have both, load up the ROM in your emulator.  If you are using 
Genecyst, press F5 to save the game's state.  This will make a copy of that 
EXACT moment in the game, so when you load the state (F7) it will reappear 
right at that point.  Now that you have a save state file (.gs0 for 
Genecyst), load up the Hex Workshop program, load the save state, and hack 
away!

This can only be done on the computer, when you are using an emulator (like 
Genecyst) and ROMs (in this case, Phantasy Star 4.)  Go to www.pe2000.net for 
ROMs, emulators, and how to use them.  If you already know, and/or are 
already using an emulator, then move on to the next paragraph.  Otherwise, 
get them so that you can follow the rest of this.

Once you are using an emulator, you may have found out how to use save 
states.  Basically, save states save all the details of your game at that 
exact moment.  Thus, you can use it more often, and faster, than regular 
saving.  For example, if you want to save your state right before making a 
choice (like a fork in the road,) if you choose the wrong path, you can just 
load up your save state and choose again.

At any rate, to begin hacking, go to the Breakpoint software homepage 
(www.bpsoft.com) and download a copy of Hex Workshop.  Load up your favorite 
emulator (whatever that may be) and make a save state.  A Genecyst save state 
will have the same name as the ROM, and will have the file extension .gs0.  
For Genecyst (the best emulator , in my opinion) press F5 to save a state, 
and F7 to load a state.  Next, load up Hex Workshop and load the save state 
(ex: ps4.gs0)  Use the "go to" command, which should be under Edit, to got to 
the offset you are looking for.  For example, if the offset is 90B4, type 
90B4 and press enter, and it will take you right to it.

Keep in mind that this all uses the hexadecimal system, which means that not 
only is there 0 - 9, but also A - F.  A = 10, B = 11, and so on.  This is 
called hexadecimal because there are 16 numbers instead of ten.

So, let's say that offset 24041 is the offset for speed, and you want speed 
to be at max (255, FF in hexadecimal).  Use "go to" to go to offset 24041, 
and then type in FF.  Next, save the data, and open the emulator again.  Load 
the state, and voila! the character's speed will be at 255.  Note that you 
can make as many changes as you want before reloading the state (not just 
one, as in the example), and that you should close Hex Workshop before 
reloading the state.

To find a particular offset easily, use the "go to" command in the edit menu 
(I think).  Remember, because of the hexadecimal system you can also enter 
letters from A to F.  For example, if the offset is 2041A, use "go to" and 
type in 2041A.  The program will take you right to it!  Also, somewhere on 
the screen (bottom right corner I think) a small box will say what offset you 
are currently on (ex. Offset: 2041A).

Now for the entering of values.  Let's say you want to change Chaz's attack 
to 99 (which is the max).  To do that, go to the offset that changes attack 
(I forget the number) and type in two number (or letters from A to F)  The 
hexadecimal system is hard to grasp at first.  In the 99 example, 99 become 
63 in hexadecimal form.  In decimal (or standard) form, the base is ten.  
This means that for a number (say 1429) each digit is multiplied by an 
increasing power of ten.  For 1429, it looks like this:

(9*1)+(2*10)+(4*100)+(1*1000) or (9*10^0)+(2*10^1)+(4*10^2)+(1*10^3)

with the carat (^) referring to the power of the number.  If you already know 
how to work with powers, I  apologize for repeating this basic information.  
As you can see, the powers of the digits increase at we go along.  In 
hexadecimal, the base is 16, not 10, so there are a few changes.  Here's what 
1429 would look like in hexadecimal:

(9*1)+(2*16)+(4*256)+(1*4096) or (9*16^0)+(2*16^1)+(4*16^2)+(1*16^3)

Thus, 63 in hexadecimal equals 99 in decimal because (3*1)+(6*16) equals 99.  
The highest number you can get with one offset is 255 (FF in hexadecimal).

-----------------------------------------------------------------------------
---

Those new to hex and hex editors can read the following:
  - Typical hex editors display a file with "offsets" on the left of the
screen, "hex values" in the middle, and the "printed garbage" on the right
of the screen.
  - Offsets are the addresses. It may appear like this: 00000000
  - Hex values are the values. They may appear like this: E6 03 20 20 FF
  - The printed garbage is there only so humans can look at it. It's not
very pretty; it won't help you in most cases; don't worry about it.
  - This guide will represent the offsets in this format: #B9
  - The last number (0-9, A-F) in an offset is the COLUMN you need to go
to. So for the offset of #B9, go to the line "000000B0" and the 9th column
to the right.

-----------------------------------------------------------------------------
---

  - For the different offsets, here's a Quick List of the most commonly
used values:  

HEX VALUE       DECIMAL VALUE           USES
-----------------------------------------------------------------------
"63"            for "99"        used for levels, item quantities
"FF"            for "255"       used for statistics
"03 E7"         for "999"       used for HP, Max HP, statistics
"0F 27"         for "9999"      used for HP, Max HP
"98 96 7F"      for "9,999,999" used for money or experience
-----------------------------------------------------------------------

Items: 11888 – 118B0
Meseta: 118B3, 118B2, 118B1

CHARACTER OFFSETS:

Chaz:

Level: 11981
Experience: 11983, 11984, 11985
Current HP: 11986, 11987
Maximum HP: 11988, 11989
Current TP: 1198A, 1198B
Maximum TP: 1198C, 1198D
Strength: 11990, 11991, 11992
Mental: 11993, 11994, 11995
Agility: 11996, 11997, 11998
Dexterity: 11999, 1199A, 1199B
Weapon Slot 1: 119C4
Weapon Slot 2: 119C5
Helmet: 119C6
Armor: 119C7
Techs:  119CA – 119D9
Skills: 119DA - 119E2
Amount: 119E2 – 119F1

Alys:

Level: 11A01
Experience: 11A03, 11A04, 11A05
Current HP: 11A06, 11A07
Maximum HP: 11A08, 11A09
Current TP: 11A0A, 11A0B
Maximum TP: 11A0C, 11A0D
Strength: 11A10, 11A11, 11A12
Mental: 11A13, 11A14, 11A15
Agility: 11A16, 11A17, 11A18
Dexterity: 11A19, 11A1A, 11A1B
Weapon Slot 1: 11A44
Weapon Slot 2: 11A45
Helmet: 11A46
Armor: 11A47
Tech:  11A4A – 11A59
Skills: 11A5A - 11A62
Amount: 11A62 - 11A67

Hahn:

Level: 11A81
Experience: 11A83, 11A84, 11A85
Current HP: 11A86, 11A87
Maximum HP: 11A88, 11A89
Current TP: 11A8A, 11A8B
Maximum TP: 11A8C, 11A8D
Strength: 11A90, 11A91, 11A92
Mental: 11A93, 11A94, 11A95
Agility: 11A96, 11A97, 11A98
Dexterity: 11A99, 11A9A, 11A9B
Weapon Slot 1: 11AC4
Weapon Slot 2: 11AC5
Helmet: 11AC6
Armor: 11AC7
Tech:  11ACA – 11AD9
Skills: 11ADA -11AE2
Amount: 11AE2 - 11AF1

Rune:

Level: 11B01
Experience: 11B03, 11B04, 11B05
Current HP: 11B06, 11B07
Maximum HP: 11B08, 11B09
Current TP: 11B0A, 11BOB
Maximum TP: 11B0C, 11B0D
Strength: 11B10, 11B11, 11B12
Mental: 11B13, 11B14, 11B15
Agility: 11B16, 11B17, 11B18
Dexterity: 11B19, 11B1A, 11B1B
Weapon Slot 1: 11B44
Weapon Slot 2: 11B45
Helmet: 11B46
Armor: 11B47
Tech: 11B4A – 11B59
Skills:  11B5A - 11B62
Amount: 11B62 - 11B71

Gryz:

Level: 11B81
Experience: 11B83, 11B84, 11B85
Current HP: 11B86, 11B87
Maximum HP: 11B88, 11B89
Current TP: 11B8A, 11B8B
Maximum TP: 11B8C, 11B8D
Strength: 11B90, 11B91, 11B92
Mental: 11B93, 11B94, 11B95
Agility: 11B96, 11B97, 11B98
Dexterity: 11B99, 11B9A, 11B9B
Weapon Slot 1: 11BC4
Weapon Slot 2: 11BC5
Helmet: 11BC6
Armor: 11BC7
Tech: 11B4A – 11B59
Skills:  11BDA - 11BE2
Amount: 11BE2 - 11BF1

Rika:

Level: 11C01
Experience: 11C03, 11C04, 11C05
Current HP: 11C06, 11C07
Maximum HP: 11C08, 11C09
Current TP: 11C0A, 11C0B
Maximum TP: 11C0C, 11C0D
Strength: 11C10, 11C11, 11C12
Mental: 11C13, 11C14, 11C15
Agility: 11C16, 11C17, 11C18
Dexterity: 11C19, 11C1A, 11C1B
Weapon Slot 1: 11C44
Weapon Slot 2: 11C45
Helmet: 11C46
Armor: 11C47
Tech:  11C4A – 11C59
Skills: 11C5A – 11C61
Amount: 11C62 - 11C69

Demi:

Level: 11C81
Experience: 11C803, 11C84, 11C85
Current HP: 11C86, 11C87
Maximum HP: 11C88, 11C89
Current TP: 11C8A, 11C8B
Maximum TP: 11C8C, 11C8D
Strength: 11C80, 11C81, 11C82
Mental: 11C83, 11C84, 11C85
Agility: 11C86, 11C87, 11C88
Dexterity: 11C89, 11C8A, 11C8B
Weapon Slot 1: 11CC4
Weapon Slot 2: 11CC5
Helmet: 11CC6
Armor: 11CC7
Tech: 11CBA – 11CD9
Skills:  11CDA - 11CE2
Amount: 11CE2 - 11CF1

Wren:

Level: 11D01
Experience: 11D03, 11D04, 11D05
Current HP: 11D06, 11D07
Maximum HP: 11D08, 11D09
Current TP: 11D0A, 11D0B
Maximum TP: 11D0C, 11D0D
Strength: 11D10, 11D11, 11D12
Mental: 11D13, 11D14, 11D15
Agility: 11D16, 11D17, 11D18
Dexterity: 11D19, 11D1A, 11D1B
Weapon Slot 1: 11D44
Weapon Slot 2: 11D45
Helmet: 11D46
Armor: 11D47
Tech:  11D4A – 11D59
Skills:  11D5A - 11D62
Amount: 11D62 - 11AF1

Raja:

Level: 11D81
Experience: 11D83, 11D84, 11D85
Current HP: 11D86, 11D87
Maximum HP: 11D88, 11D89
Current TP: 11D8A, 11D8B
Maximum TP: 11D8C, 11D8D
Strength: 11D90, 11D91, 11D92
Mental: 11D93, 11D94, 11D95
Agility: 11D96, 11D97, 11D98
Dexterity: 11D99, 11D9A, 11D9B
Weapon Slot 1: 11DC4
Weapon Slot 2: 11DC5
Helmet: 11ADC6
Armor: 11DC7
Tech:  11DCA – 11DD9
Skills:  11DDA - 11DE2 
Amount: 11DE2 - 11DF1

Kyra:

Level: 11E01
Experience: 11E03, 11E04, 11E05
Current HP: 11E06, 11E07
Maximum HP: 11E08, 11E09
Current TP: 11E0A, 11E0B
Maximum TP: 11E0C, 11E0D
Strength: 11E10, 11E11, 11E12
Mental: 11E13, 11E14, 11E15
Agility: 11E16, 11E17, 11E18
Dexterity: 11E19, 11E1A, 11E1B
Weapon Slot 1: 11E44
Weapon Slot 2: 11E45
Helmet: 11E46
Armor: 11E47
Tech: 11E4A – 11E59
Skills:  11E5A - 11E62
Amount: 11E62 - 11E71

Seth:

Level: 11E81
Experience: 11E83, 11E84, 11E85
Current HP: 11E86, 11E87
Maximum HP: 11E88, 11E89
Current TP: 11E8A, 11E8B
Maximum TP: 11E8C, 11E8D
Strength: 11E90, 11E91, 11E92
Mental: 11E93, 11E94, 11E95
Agility: 11E96, 11E97, 11E98
Dexterity: 11E99, 11E9A, 11E9B
Weapon Slot 1: 11EC4
Weapon Slot 2: 11EC5
Helmet: 11EC6
Armor: 11EC7
Tech:  11ECA – 11ED9
Skills: 11EDA - 11EE2
Amount:  11EE2 - 11EF1

Notes:

Although you can set the characters' stats to a maximum of 255 (FF), if they 
gain a level or equip something that increases stats, the affected stat will 
reset itself and work upwards from there.  For example, if you set Chaz's 
strength to 255, then have him gain five more points of strength, he will 
immediately gain one and make it 0, then gain four more after that, leaving 
him with a strength of four.  However, the game's normal maximum for 
character stats is 99 (63), so you would be wise to gain as many levels as 
you want (or change the characters' experience to 9999999, or 98967F in 
hexadecimal, for level 99), then make all their stats 99.

The Technique Amounts section works as follows: starting with the character's 
first technique, it alternates between the current number of allowed usages 
of a technique and the maximum number of usages.  For example, Chaz's first 
technique is Earth, and on level 99 he can use it 46 times.  46 converts to 
2E in hexadecimal, so you should see a 2E in offset 119E2, and a 2E in offset 
119E3.  As far as I know right now, you cannot change which techniques they 
have, or give them more techniques than they started with.

ITEM MODIFIER VALUES:

* = Debug/Useless item

00: Empty
01: Dagger
02: Hunting Knife
03: Boomerang
04: Leather Cloth
05: Leather Helm
06: Leather Crown
07: Leather Band
08: Steel Sword
09: Slasher
0A: Leather Shield
0B: Carbon Suit
0C: Carbon Shield
0D: Carbon Helm
0E: Carbon Crown
0F: Circlet
10: Wooden Cane
11: White Mantle
12: Titanium Sword
13: Titanium Dagger
14: Titanium Slasher
15: Titanium Axe
16: Broad Axe
17: Titanium Mail
18: Titanium Shield
19: Titanium Helm
1A: Titanium Crown
1B: Nothing*
1C: Graphite Suit
1D: Graphite Shield
1E: Ceramic Sword
1F: Graphite Crown
20: Claw
21: Ceramic Knife
22: Ceramic Shield
23: Laser Slasher
24: Saber Claw
25: Struggle Axe
26: Ceramic Mail
27: Ceramic Helm
28: Laser Sword
29: Laser Claw
2A: Laser Barrier
2B: Impacter
2C: Titanium Armor
2D: Head Gear
2E: Stun Shot
2F: Laser Axe
30: Laser Knife
31: Ceramic Armor
32: Titanium Gear
33: Psychic Mail
34: Psychic Shield
35: Psychic Crown
36: Psychic Circlet
37: Force Cane
38: Psychic Robe
39: Pyscho Wand
3A: Frade Mantle
3B: Wave Shot
3C: Space Armor
3D: Ceramic Gear
3E: Plasma Rifle
3F: Pulse Laser
40: Plasma Sword
41: Plasma Claw
42: Plasma Dagger
43: Plasma Field
44: Silver Rod
45: Silver Mantle
46: Silver Circlet
47: Silver Mail
48: Silver Shield
49: Silver Helm
4A: Silver Crown
4B: Zirco Gear
4C: Napalm Shot
4D: Zirco Armor
4E: Flame Sword
4F: Thunder Claw
50: Tornado Dagger
51: Dream Rod
52: Phantasm Robe
53: Silver Tusk
54: Pulse Vulcan
55: Compound Armor
56: Compound Gear
57: Reflect Mail
58: Reflect Shield
59: Reflect Robe
5A: Laco Sword
5B: Laco Dagger
5C: Laco Claw
5D: Laco Slasher
5E: Guard Rod
5F: Plasma Launcher
60: Elastic Armor
61: Elastic Gear
62: Laco Rod
63: Genocycle Claw
64: Swift Helm
65: Moon Slasher
66: Power Shield
67: Laco Mail
68: Laco Helm
69: Laco Crown
6A: Laco Circlet
6B: Laco Shield
6C: Cyber Suit
6D: Guard Sword
6E: Photon Eraser
6F: Laco Armor
70: Laco Gear
71: Mahlay Dagger
72: Guard Claw
73: Guard Armor
74: Guard Robe
75: Guard Mail
76: Nothing*
77: Elsydeon
78: Laco Axe
79: Sonic Buster
7A: Defeat Axe
7B: Nothing
7C: Mahlay Mail
7D: Monomate
7E: Dimate
7F: Trimate
80: Antidote
81: Cure Paralysis
82: Moon Dew
83: Star Dew
84: Telepipe
85: Escapipe
86: Sol Dew
87: Guard Shield
88: Mahlay Shield
89: Shadow Blade
8A: Alis Sword
8B: Dynamite
8C: Nothing*
8D: Alshline
8E: Eclipse Torch
8F: Aero Prizm
90: Repair Kit
91: Shortcake
92: Penguin Feed
93: Perolymate
94: Pennant
95: Wood Carving
96: Land Rover
97: Ice Digger
98: Hydrofoil
99: Control Key
9A: Canceller
9B: Palma Ring
9C: Motavia Ring
9D: Dezolis Ring
9E: Rykros Ring
9F: Algo Ring
A0: Mahlay Ring
A1 - FF: Debug items*

SKILL VALUES: 

Please Note:  Although you can give any character these skills, it may cause 
your game to malfuction. 
EG: Giving Rika "Efess" (and then trying to use it in battle) will crash the 
game.

00: Empty
01: Crosscut
02: Rayblade
03: DblSlash
04: Flaeli
05: Flare
06: Vortex
07: Astral
08: Airslash
09: Disrupt
0A: Hewn
0B: Tandle
0C: Efess
0D: Legeon
0E: Burstroc
0F: Posibolt
10: Sweeping
11: Phonon
12: St. Fire
13: Corrosion
14: Explode
15: Eliminat
16: Diem
17: Spark
18: Death
19: Holyword
1A: Dthspell
1B: Negatis
1C: Illusion
1D: Telele
1E: Shadow
1F: Earth
20: Hijammer
21: Moonshad
22: Crash
23: Statisbm
24: Bindwa
25: MindBlst
26: Barrier
27: War Cry
28: Blessing
29: Warla
2A: Recover
2B: Medice
2C: Miracle
2D: Medic Pw
2E: Ataraxia
2F: Vision


TECH VALUES:


00: Empty
01: Foi
02: Gifoi
03: Nafoi
04: Wat
05: Giwat
06: Nawat
07: Tsu
08: Githu
09: Nathu
0A: Zan
0B: Gizan
0C: Nazan
0D: Gra
0E: Gigra
0F: Nagra
10: MEGID
11: Brose
12: Vol
13: Savol
14: Gelun
15: Doran
16: Seals
17: Rimit
18: Res
19: Gires
1A: Nares
1B: Sar
1C: Gisar
1D: Nasar
1E: Shift
1F: Saner
20: Deban
21: Feeve
22: Anti
23: Rimpa
24: Rever
25: Regen
26: Arows
27: Ryuka
28: Hinas

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