Item Codes

Below is a list of item values for the different versions of Majora's Mask.

NOTE: Anything with an asterisk next to it is either beta, unknown, or leftover from Ocarina of Time.

Majora's Mask (J)

00 = Ocarina of Time
01 = Arrow
02 = Fire Arrow
03 = Ice Arrow
04 = Light Arrow
05 = Fairy Ocarina*
06 = Bomb
07 = Bombchu
08 = Deku Stick
09 = Dku Nuts
0A = Magic Beans
0B = Slingshot
0C = Powder Keg
0D = Pictograph
0E = Lens of Truth
0F = Hookshot
10 = Great Fairy's Sword
11 = OoT Hookshot*
12 = Empty Bottle
13 = Red Potion
14 = Green Potion
15 = Blue Potion
16 = Fairy in Bottle
17 = Deku Princess
18 = Milk
19 = Milk (1/2 Full)
1A = Fish in Bottle
1B = Bugs in Bottle
1C = Blue Fire*
1D = Poe
1E = Big Poe
1F = Water
20 = Spring Water
21 = Zora Egg
22 = Gold Dust
23 = Mushroom
24 = Purple Potion?*
25 = Purple Potion?*
26 = Sea Horse
27 = Chateau Romani
28 = Eel*
29 = Purple Potion?*
2A = Purple Potion?*
2B = Purple Potion?*
2C = Purple Potion?*
2D = Purple Potion?*
2E = Purple Potion?*
2F = Purple Potion?*
30 = Moon's Tear
31 = Clock Town Title Deed
32 = Swamp Title Deed
33 = Snowhead Title Deed
34 = Great Bay Title Deed
35 = Poacher's Saw*
36 = Broken Biggoron's Sword*
37 = Prescription*
38 = Eyeball Frog*
39 = Eye Drops*
3A = Inn Keys
3B = Letter from Mama
3C = Moon's Tear
3D = Moon's Tear
3E = Moon's Tear
3F = Moon's Tear
40 = Moon's Tear
41 = Moon's Tear
42 = Moon's Tear
43 = Moon's Tear
44 = Letter from Kafei
45 = Pendant of Memories
46 = Moon's Tear
47 = Moon's Tear
48 = Moon's Tear
49 = Moon's Tear
4A = Moon's Tear
4B = Moon's Tear
4C = Moon's Tear
4D = Tingle's Map
4E = Deku Mask
4F = Goron Mask
50 = Zora Mask
51 = Fierce Deity Mask
52 = Mask of Truth
53 = Kafei Mask
54 = All-Nite Mask
55 = Bunny Hood
56 = Keaton Mask
57 = Goro Mask
58 = Romani Mask
59 = Circus Leader's Mask
5A = Postman's Mask
5B = Couple's Mask
5C = Great Fairy's Mask
5D = Gibdo Mask
5E = Don Gero's Mask
5F = Kamaro's Mask
60 = Captain's Hat
61 = Stone Mask
62 = Bremen Mask
63 = Blast Mask
64 = Mask of Scents
65 = Giant's Mask
66 = Fire Arrow (Wind Medallion as text)
67 = Ice Arrow (Ice Medallion as text)
68 = Light Arrow (? Medallion as text)
69 = Goron Drums*
6A = Zora Guitar*
6B = Deku Horns*
6C = Kokiri Sword
6D = Razor Sword
6E = Gilded Sword
6F = Double Helix Sword
70 = Hero's Shield
71 = Mirror Shield
72 = MQ-Style Mirror Shield*
73 = Quiver (holds 30)
74 = Quiver (holds 40)
75 = Quiver (holds 50)
76 = Bomb Bag
77 = Bigger Bomb Bag
78 = Biggest Bomb Bag
79 = Strange Wallet*
7A = Adult's Wallet*
7B = Giant's Wallet*
7C = Fishing Pole*
7D = Odolwa's Remains
7E = Goht's Remains
7F = Gyorg's Remains
80 = Twinmold's Remains
81 - FE = Junk Icons (Displays garbled text or dungeon items)
FF = Null

Item Modifying Codes for (J) Version

Codes in here by poe7
801EF4F0 00?? = All-Nite Mask
801EF4EA 00?? = Blast Mask
801EF4EF 00?? = Bremen Mask
801EF4E9 00?? = Bunny Hood
801EF4FD 00?? = Captain's Hat
801EF4F5 00?? = Circus Leader's Mask
801EF4F7 00?? = Couple's Mask
801EF4ED 00?? = Deku Mask
801EF4F1 00?? = Don Gero's Mask
801EF4FF 00?? = Fierce Deity's Mask
801EF4FC 00?? = Garo's Mask
801EF4FE 00?? = Giant's Mask
801EF4FB 00?? = Gibdo's Mask
801EF4F3 00?? = Goron's Mask
801EF4EC 00?? = Great Fairy's Mask
801EF4F6 00?? = Kafei's Mask
801EF4FA 00?? = Kamero's Mask
801EF4EE 00?? = Keaton's Mask
801EF4F8 00?? = Mask of Truth
801EF4E8 00?? = Postman's Hat
801EF4F4 00?? = Romani Mask
801EF4F2 00?? = Mask of Scents
801EF4EB 00?? = Stone Mask
801EF4F9 00?? = Zora Mask
801EF4CD 00?? = Sword And Shield slot
811EF51A 20?? = Quiver and Bomb Bag slot
801EF51D 00?? = Bomber's Notebook and Song of Storms slot
811EF51E F7?? = Rest of the Song slots and the Remains slots
801EF4D5 00?? = Event Slot 1
801EF4DB 00?? = Event Slot 2
801EF4E1 00?? = Event Slot 3

More Codes Later
There are few exceptions for the values, such as on the equipment upgrades, where there are different outcomes.