This cheat is just like the Pokemon Modifier cheat where you just replace the last four or three digits of the cheat code.
Unli Masterball (in PC):
82025840 0001
Unli Rare Candies (in PC):
82025840 0044
Other items: (In case you do not wanna search for them)
Pokeballs:
0002 = Ultra Ball
0003 = Great Ball
0004 = Poke Ball
0005 = Safari Ball
0006 = Net Ball
0007 = Dive Ball
0008 = Nest Ball
0009 = Repeat Ball
000A = Timer Ball
000B = Luxury Ball
000C = Premier Ball
Items:
000D = Potion
000E = Antidote
000F = Burn Heal
0010 = Ice Heal
0011 = Awakening
0012 = Parlyz Heal
0013 = Full Restore
0014 = Max Potion
0015 = Hyper Potion
0016 = Super Potion
0017 = Full Heal
0018 = Revive
0019 = Max Revive
001A = Fresh Water
001B = Soda Pop
001C = Lemonade
001D = MooMoo Milk
001E = Energy Powder
001F = Energy Root
0020 = Heal Powder
0021 = Revival Herb
0022 = Ether
0023 = Max Ether
0024 = Elixer
0025 = Max Elixer
0026 = Lava Cookie
0027 = Blue Flute
0028 = Yellow Flute
0029 = Red Flute
002A = Black Flute
002B = White Flute
002C = Berry Juice
002D = Sacred Ash
002E = Shoal Salt
002F = Shoal Shell
0030 = Red Shard
0031 = Blue Shard
0032 = Yellow Shard
0033 = Green Shard
003F = HP Up
0040 = Protein
0041 = Iron
0042 = Carbos
0043 = Calcium
0045 = PP Up
0046 = Zinc
0047 = PP Max
0049 = Guard Spec
004A = Dire Hit
004B = X Attack
004C = X Defend
004D = X Speed
004E = X Accuracy
004F = X Special
0050 = Poke Doll
0051 = Fluffy Tail
0053 = Super Repel
0054 = Max Repel
0055 = Escape Rope
0056 = Repel
005D = Sun Stone
005E = Moon Stone
005F = Fire Stone
0060 = Thunder Stone
0061 = Water Stone
0062 = Leaf Stone
0067 = Tiny Mushroom
0068 = Big Mushroom
006A = Pearl
006B = Big Pearl
006C = Stardust
006D = Star Piece
006E = Nugget
006F = Heart Scale
Mail:
0079 = Orange Mail
007A = Harbor Mail
007B = Glitter Mail
007C = Mech Mail
007D = Wood Mail
007E = Wave Mail
007F = Bead Mail
0080 = Shadow Mail
0081 = Tropic Mail
0082 = Dream Mail
0083 = Fab Mail
0084 = Retro Mail
Berries:
0085 = Cheri Berry
0086 = Chesto Berry
0087 = Pecha Berry
0088 = Rawst Berry
0089 = Aspear Berry
008A = Leppa Berry
008B = Oran Berry
008C = Persim Berry
008D = Lum Berry
008E = Sitrus Berry
008F = Figy Berry
0090 = Wiki Berry
0091 = Mago Berry
0092 = Aguav Berry
0093 = Iapapa Berry
0094 = Razz Berry
0095 = Bluk Berry
0096 = Nanab Berry
0097 = Wepear Berry
0098 = Pinap Berry
0099 = Pomeg Berry
009A = Kelpsy Berry
009B = Qualot Berry
009C = Hondew Berry
009D = Grepa Berry
009E = Tamato Berry
009F = Cornn Berry
00A0 = Magost Berry
00A1 = Rabuta Berry
00A2 = Nomel Berry
00A3 = Spelon Berry
00A4 = Pamtre Berry
00A5 = Watmel Berry
00A6 = Durin Berry
00A7 = Belue Berry
00A8 = Liechi Berry
00A9 = Ganlon Berry
00AA = Salac Berry
00AB = Petaya Berry
00AC = Apicot Berry
00AD = Lansat Berry
00AE = Starf Berry
00AF = Enigma Berry
HMs, TMs, etc.:
00B3 = Bright Powder
00B4 = White Herb
00B5 = Macho Brace
00B6 = Exp Share
00B7 = Quick Claw
00B8 = Soothe Bell
00B9 = Mental Herb
00BA = Choice Band
00BB = King's Rock
00BC = Silver Powder
00BD = Amulet Coin
00BE = Cleanse Tag
00BF = Soul Dew
00C0 = Deep Sea Tooth
00C1 = Deep Sea Scale
00C2 = Smoke Ball
00C3 = Everstone
00C4 = Focus Band
00C5 = Lucky Egg
00C6 = Scope Lens
00C7 = Metal Coat
00C8 = Leftovers
00C9 = Dragon Scale
00CA = Light Ball
00CB = Soft Sand
00CC = Hard Stone
00CD = Miracle Seed
00CE = Black Glasses
00CF = Black Belt
00D0 = Magnet
00D1 = Mystic Water
00D2 = Sharp Beak
00D3 = Poison Barb
00D4 = Nevermelt Ice
00D5 = Spell Tag
00D6 = Twisted Spoon
00D7 = Charcoal
00D8 = Dragon Fang
00D9 = Silk Scarf
00DA = Up-Grade
00DB = Shell Bell
00DC = Sea Incense
00DD = Lax Incense
00DE = Lucky Punch
00DF = Metal Powder
00E0 = Thick Club
00E1 = Stick
00FE = Red Scarf
00FF = Blue Scarf
0100 = Pink Scarf
0101 = Green Scarf
0102 = Yellow Scarf
0103 = Mach Bike
0104 = Coin Case
0105 = ItemFinder
0106 = Old Rod
0107 = Good Rod
0108 = Super Rod
0109 = S.S. Ticket
010A = Contest Pass
010C = Wailmer Pail
010D = Devon's Goods
010E = Soot Sack
010F = Basement Key
0110 = Acro Bike
0111 = PokeBlock Case
0112 = Letter
0113 = Eon Ticket
0114 = Red Orb
0115 = Blue Orb
0116 = Scanner
0117 = Go-Goggles
0118 = Meteorite
0119 = Rm.1 Key
011A = Rm.2 Key
011B = Rm.4 Key
011C = Rm.6 Key
011D = Storage Key
011E = Root Fossil
011F = Claw Fossil
0120 = Devon Scope
0121 = TM01 (Focus Punch)
0122 = TM02 (Dragon Claw)
0123 = TM03 (Water Pulse)
0124 = TM04 (Calm Mind)
0125 = TM05 (Roar)
0126 = TM06 (Toxic)
0127 = TM07 (Hail)
0128 = TM08 (Bulk Up)
0129 = TM09 (Bullet Seed)
012A = TM10 (Hidden Power)
012B = TM11 (Sunny Day)
012C = TM12 (Taunt)
012D = TM13 (Ice Beam)
012E = TM14 (Blizzard)
012F = TM15 (Hyper Beam)
0130 = TM16 (Light Screen)
0131 = TM17 (Protect)
0132 = TM18 (Rain Dance)
0133 = TM19 (Giga Drain)
0134 = TM20 (Safeguard)
0135 = TM21 (Frustration)
0136 = TM22 (Solar Beam)
0137 = TM23 (Iron Tail)
0138 = TM24 (Thunderbolt)
0139 = TM25 (Thunder)
013A = TM26 (Earthquake)
013B = TM27 (Return)
013C = TM28 (Dig)
013D = TM29 (Psychic)
013E = TM30 (Shadow Ball)
013F = TM31 (Brick Break)
0140 = TM32 (Double Team)
0141 = TM33 (Reflect)
0142 = TM34 (Shock Wave)
0143 = TM35 (Flamethrower)
0144 = TM36 (Sludge Bomb)
0145 = TM37 (Sandstorm)
0146 = TM38 (Fire Blast)
0147 = TM39 (Rock Tomb)
0148 = TM40 (Aerial Ace)
0149 = TM41 (Torment)
014A = TM42 (Facade)
014B = TM43 (Secret Power)
014C = TM44 (Rest)
014D = TM45 (Attract)
014E = TM46 (Thief)
014F = TM47 (Steel Wing)
0150 = TM48 (Skill Swap)
0151 = TM49 (Snatch)
0152 = TM50 (Overheat)
0153 = HM01 (Cut)
0154 = HM02 (Fly)
0155 = HM03 (Surf)
0156 = HM04 (Strength)
0157 = HM05 (Flash)
0158 = HM06 (Rock Smash)
0159 = HM07 (Waterfall)
015A = HM08 (Dive)
015D = {Oak's Parcel}
015E = {Poke Flute}
015F = {Secret Key}
0160 = {Bike Voucher}
0161 = {Gold Teeth}
0162 = {Old Amber}
0163 = {Card Key}
0164 = {Elevator Key}
0165 = {Dome Fossil}
0166 = {Helix Fossil}
0167 = {Silph Scope}
0168 = {Bicycle}
0169 = {Town Map}
016A = {Battle Searcher}
016B = {Voice Checker}
016C = {TM Case}
016D = {Berry Bag}
016E = {Help TV}
016F = {Tri-Pass}
0170 = {Rainbow Pass}
0171 = {Tea}
0172 = {Mystery Ticket}
0173 = {Aurora Ticket}
0174 = {Konaire}
0175 = {Ruby Plate}
0176 = {Sapphire Plate}
01F4 = [Jail Key]
01F5 = [Elevator Key]
01F6 = [Small Tablet]
01F7 = [F-Disk]
01F8 = [R-Disk]
01F9 = [L-Disk]
01FA = [D-Disk]
01FB = [U-Disk]
01FC = [Subway Key]
01FD = [Maingate Key]
01FE = [Card Key]
01FF = [Down St. Key]
0200 = [DNA Sample 1]
0201 = [Bayleef DNA]
0202 = [DNA Sample 2]
0203 = [Quilava DNA]
0204 = [DNA Sample 3]
0205 = [Croconaw DNA]
0206 = [DNA Sample 4]
0207 = [Sudowoodo DNA]
0208 = [DNA Sample 5]
0209 = [Misdreavus DNA]
020A = [DNA Sample 6]
020B = [Mightyena DNA]
020C = [DNA Sample 7]
020D = [Raikou DNA]
020E = [DNA Sample 8]
020F = [Entei DNA]
0210 = [DNA Sample 9]
0211 = [Suicune DNA]
0212 = [Data ROM]
0213 = [Steel Teeth]
0214 = [Gear]
0215 = [Red ID Badge]
0216 = [Green ID Badge]
0217 = [Blue ID Badge]
0218 = [Yellow ID Badge]
0219 = [Time Flute]
021A = [Ein File S]
021B = [Ein File H]
021C = [Ein File C]
021D = [Ein File P]
021E = [Cologne Case]
021F = [Joy Scent]
0220 = [Excite Scent]
0221 = [Vivid Scent]
0222 = [Powerup Part]
0223 = [Ein File F]
Hope this helps!