List of items and their indexes as used in the inventory data, chest definitions, etc.

Items

Located at offsets 0x70 (indices) and 0xd0 (durability) in the stat struct.

Index	Name	Durability
-1	(empty)	-
0	Earthly Nut	3840 (=> Rotten Nut)
1	Solar Nut	3840 (=> Rotten Nut)
2	Speed Nut	3840 (=> Rotten Nut)
3	Tiptoe Nut	3840 (=> Rotten Nut)
4	Banana	3840 (=> Rotten Nut)
5	Chocolate Banana	3840 (=> Rotten Nut)
6	Bearnut	3840 (=> Rotten Nut)
7	See-All Nut	3840 (=> Rotten Nut)
8	Rotten Nut	3840 (=> Rotten Nut)
9	Redshroom	7680 (=> Bad Mushroom)
10	Blueshroom	7680 (=> Bad Mushroom)
11	Bad Mushroom	-
12	Drop of Sun	3840 (=> Rotten Water)
13	Tomato Juice	7680 (=> Rotten Water)
14	Rotten Water	-
15	Tasty Meat	3840 (=> Rotten Meat)
16	Jerky	-
17	Rotten Meat	-
18	Chocolate	3840 (=> Melted Chocolate, or combines into Chocolate-covered X with item beneath)
19	Melted Chocolate	-
20	Chocolate-covered	-
21	Deluxe Chocolate	-
22	Healer	-
23	Magical Potion	-
24	Antidote	-
25	Elixir	-
26	Sunblock	-
27	Mr. Rainnot	-
28	Tonniar .Rm	-
29	Sunny Clog	-
30	Warp Leaf	-
31	The Fool	-
32	The High Priestess	-
33	The Empress	-
34	The Emperor	-
35	The Lovers	-
36	The Chariot	-
37	Strength	-
38	Wheel Of Fortune	-
39	Justice	-
40	The Hanged Man	-
41	Death	-
42	Temperance	-
43	The Devil	-
44	The Tower	-
45	The Star	-
46	The Moon	-
47	The Sun	-
48	Judgement	-

Key items

Located at offset 0x130 in the stat struct.

Index	Name
-1	(empty)
0	Dark Card
1	PET
2	Spade Emblem
3	Heart Emblem
4	Diamond Emblem
5	Club Emblem
6	Joker Emblem
7	Oak Coffin
8	Bronze Coffin
9	Iron Coffin
10	Silver Coffin
11	Solar Coffin
12	Coffin Monster Elefan
13	Vampire Coffin
14	Iron Maiden
15	Warehouse Key
16	Circle Key
17	Triangle Key
18	Square Key
19	Red Crystal
20	Blue Crystal
21	Green Crystal
22	Yellow Crystal
23	Stone Tablet Piece
24	Tasty Water
25	The Magician
26	The Hierophant
27	The Hermit
28	The World

Protectors

Located at offset 0x150 in the stat struct.

Index	Name	Durability	Weight	Description
-1	(empty)
0	Cloth Armor	10	5	Armor made of cloth.
1	Leather Armor	15	10	Armor made of leather.
2	Chain Mail	20	15	Armor made of interlaced metal rings.
3	Silver Chain	25	20	Silver chain mail. Changes Status.
4	Scale Mail	30	25	Leather armor with metal sheeting sewn on.
5	Samurai Armor	35	30	Samurai armor. Raises Strength.
6	Blade Mail	40	35	Metal plate armor.
7	Brigandine	45	40	Leather armor with metal sheeting sewn on. Protects from solar wind.
8	Mail of Sol	25	22	Solar armor. Protects from Sol. Station-charge 2x faster.
9	Mail of Darkness	30	22	Darkness armor. Protects from Dark.
10	Mail of Luna	25	22	Moonlight armor. Protects from all properties.
11	Fire Dragon Fang	30	33	Fire charm. Protects from Flame.
12	Water Dragon Tail	30	33	Water charm. Protects from Frost.
13	Wind Dragon Wing	30	33	Wind charm. Protects from Cloud.
14	Earth Dragon Claw	30	33	Earth charm. Protects from Earth.
15	Dragon Scale	28	24	Armor made from dragon scales. Protects from the 4 main properties.
16	Fairy Robe	16	4	Clothing left behind by a fairy. Doubles effects of Spirit Bugs.
17	Earthly Robe	28	8	Maiden's costume. Doubles effect time of Solar Fruit.
18	Raincoat	12	6	Rain cloak. Protects from the rain.
19	Garb of Light	30	12	Clothing woven with the sun's rays. Doubles value of Solar Gauge.
20	Garb of Darkness	30	12	Clothing woven with Dark Matter. Draws out the power of night.
21	Magic Robe	26	16	Clothing woven with a magic spell. Decreases cost of magic.
22	Blood-soaked Cape	22	12	Cursed overcoat. Changes Status.
23	Skull Suit	20	16	Sneaking suit. Makes it hard for enemies to spot you.
24	Training Gear	25	16	Clothing that allows heartfelt emotions. Increases potential Ex Points.
25	Thief's Clothes	18	24	Clothing stolen by a thief. Causes enemies to drop more normal items than usual.
26	Hunter's Clothes	24	24	Clothing favored by a hunter. Causes enemies to drop more rare items than usual.
27	Poison Guard	18	28	Armor containing defense magic. Protects from poisoning.
28	Weapon Guard	24	28	Armor containing defense magic. Prevents damage to weapons.
29	Parade Armor	32	28	Formal armor. Summons the Crimson Monster.
30	Ninja Gi	18	28	Ninja costume. Raises Agility.
31	Spike Mail	40	40	Armor that protects the wearer through automatic counterattacks.
32	Pitch Black Armor	50	50	Berserk armor. Sucks up Life and raises attack power.
33	Mega Power	25	30	MegaMan power. Enables charging of MegaBuster.
34	Guts Power	30	40	GutsMan power. Reduces sustained damage by half.
35	Proto Power	25	20	ProtoMan power. Speeds up attacks.
36	Toad Power	20	20	ToadMan power. Energy can be restored in the rain.

Weapons

Located at offset 0x3d0 in the stat struct. Uncharacteristically for save data, weapons are organized into an array of structs (instead of multiple arrays of scalars):

struct weapon {
  i8 index;
  i8 bonus_or_malus;
  i16 durability;
  char forged_by[12]; // TODO: Does this also apply to the Japanese version?
  u32 sp_effects[3];  // TODO: Each value contains more than just the SP effect index!
};

struct stat {
  /* offset 0x3d0 */ weapon weapons[16 /* maybe more? */];
};

Weapon indexes

Index	Name	Level	Base power	Description
0	(empty)
Swords
1	Gradius	1	5	Dagger.
2	Short Sword	5	12	Small sword.
3	Broadsword	9	16	Wide sword.
4	Long Sword	13	21	Extended sword.
5	Dull Blade	1	1	Blunt sword.
6	Zweihander	17	25	Two-hand sword.
7	Flamberge	21	30	Flaming sword.
8	Claymore	25	34	Large sword.
9	Magic Sword	29	39	Mystical sword.
10	Katana	17	34	Samurai sword.
11	Bastard Sword	33	43	Hand-and-a-half sword.
12	Great Sword	37	48	Giant sword.
13	Bushido Sword	41	42	Warrior's spirit.
14	Blood Sword	45	57	Cursed sword.
15	Muramasa	33	52	Japanese blade.
16	Vorpal Sword	49	61	Sturdy sword.
17	Solar Sword	53	66	Sword of light.
18	Sword of Darkness	53	66	Sword of Darkness.
19	Gram	57	70	Complete sword.
Spears
20	Short Spear	1	8	Hand spear.
21	Glaive	1	15	Single-edged spear.
22	Long Spear	9	20	Extended spear.
23	Lance	13	25	Knight's spear.
24	Quarter Staff	1	4	180-cm fighting stick.
25	Corsesca	17	30	Wing spear.
26	Fire Paw	21	35	Flaming spear.
27	Bardiche	25	40	Long-handled battleaxe.
28	Ice Glaive	29	45	Water spear.
29	Rune Glaive	17	40	Single-edged magical spear.
30	Partizan	33	50	Broad spear.
31	Thunder Spear	37	55	Wind spear.
32	Blood Spear	41	60	Cursed spear.
33	Grand Lance	45	65	Earth spear.
34	Rune Spear	33	60	Magical spear.
35	Halberd	49	70	Hatchet spear.
36	White Queen	53	75	Spear of light.
37	Black Queen	53	75	Darkness spear.
38	Gungnir	57	80	Complete spear.
Hammers
39	Club	1	11	Heavy swinging stick.
40	Hammer	5	18	Hitting weapon.
41	Mace	9	24	Hitting weapon.
42	Flail	13	29	Metal ball with chains attached.
43	Pounder	1	7	Small hammer.
44	Axe	17	35	Hatchet.
45	Maul	21	40	Giant wooden mallet.
46	Silver Mace	25	46	Silver hitting weapon.
47	Silver Flail	29	51	Metal ball with chains attached.
48	Heavy Mace	17	46	Giant mace.
49	Battle Axe	33	57	Battle hatchet.
50	War Hammer	37	62	Battle mace.
51	Bloody Mace	41	68	Cursed mace.
52	Morning Star	45	73	Star ball with chains.
53	Heavy Axe	33	68	Giant battleaxe.
54	Earthshaker	49	79	Quake hammer.
55	Daybreak	53	84	Hammer of light.
56	Twilight	53	84	Hammer of Darkness.
57	Mjollnir	57	90	Complete hammer.
Special
58	Broken Solar Gun	??	-	Memento of Father.
59	Gun Del Sol	??	75	Solar Gun.
60	Gun Del Hell	??	80	Dark Gun.
61	Megabuster	??	85	Certificate of friendship.
62	Star Piece	-	-	Mass of meteoric iron.
63	Astro Sword	??	6	Star sword.
64	Astro Spear	??	6	Star spear.
65	Astro Hammer	??	6	Star hammer.

SP effects

The SP effect index is stored in the bottom 8 bits of each sp_effect value.

Index	Description
0	(no SP effect)
1	Increases attack power based on sunlight.
2	Increases attack power at night.
3	Increases attack power as Life diminishes.
4	Decreases attack power as Life diminishes.
5	Uses Solar Station energy directly for Enchantment Attacks.
6	Uses Solar Station energy directly for Enchantment Attacks.
7	Uses Solar Station energy directly for Enchantment Attacks.
8	Increases attack power based on Vitality.
9	Increases attack power based on Spirit.
10	Increases attack power based on Agility.
11	Increases attack power based on Life.
12	Increases attack power based on Energy.
13	Increases attack power during abnormal status.
14	Increases attack power based on sunlight.
15	Increases attack power at night.
16	Randomly increases damage.
17	Increases damage depending on the number of enemies defeated.
18	Increases damage with the Flame property.
19	Increases damage with the Frost property.
20	Increases damage with the Cloud property.
21	Increases damage with the Earth property.
22	Increases damage to beast monsters.
23	Increases damage to material monsters.
24	Increases damage to phantom monsters.
25	Increases damage to Undead monsters.
26	Increases damage to Immortals.
27	Randomly nullifies defense power.
28	Randomly paralyzes enemies.
29	Defeat an enemy and...
30	Decreases magic cost for Enchantment Attacks.
31	Reduces damage to weapons.

Magic

Located at offset 0x54 in the stat struct. This is a bitmask:

Bit	Name
0	Enchantment Sol
1	Enchantment Dark
2	Enchantment Flame
3	Enchantment Frost
4	Enchantment Cloud
5	Enchantment Earth
6	Transform
7	Rising Sun
8	??? (Zero Shift?)
9	??? (Black Sun?)
10	Freeze
11	Dash
12	Healing
13	Dynamite
14	Sleeping
15	Change Bat
16	Change Mouse
17	Change Wolf

The remaining bits are likely unused.