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The following items are Generation I specific and are placed in the order it is in the Gamboy Game:
| # | Item | Description |
|---|---|---|
| 000 | No Item | N/A |
| 001 | Master Ball | Will always catch a wild Pokémon. |
| 002 | Ultra Ball | Has double chance of catching a wild Pokémon than a Poké Ball. |
| 003 | Great Ball | Has a 1.5 times chance of catching a wild Pokémon than a Poké Ball. |
| 004 | Poké Ball | The Basic ball used to catch wild Pokémon. |
| 005 | Town Map | A Basic map showing the Kanto region. |
| 006 | Bicycle | Basic Bicycle used for faster transportation. |
| 008 | Safari Ball | Has a 1.5 times chance of catching a Pokémon inside the Safari Zone. |
| 009 | Pokédex | Contains data of caught Pokémon. |
| 010 | Moon Stone | Used to evolve some Pokémon. |
| 011 | Antidote | Used to heal Poison effects. |
| 012 | Burn Heal | Used to heal Burn effects. |
| 013 | Ice Heal | Used to heal Freezing effects. |
| 014 | Awakening | Used to heal Sleep effects. |
| 015 | Parlyz Heal | Used to heal Paralysis effects. |
| 016 | Full Restore | Fully heals Health and Status effects. |
| 017 | Max Potion | Fully heals Health. |
| 018 | Hyper Potion | Restores 200HP. |
| 019 | Super Potion | Restores 50HP. |
| 020 | Potion | Restores 20HP. |
| 029 | Escape Rope | Used to escape caves and buildings. |
| 030 | Repel | Repels Wild Pokémon for 100 steps. |
| 031 | Old Amber | Contains a fossilised Aerodactyl. |
| 032 | Fire Stone | Used to evolve some Pokémon. |
| 033 | Thunder Stone | Used to evolve some Pokémon. |
| 034 | Water Stone | Used to evolve some Pokémon. |
| 035 | HP Up | Increases the maximum HP of a Pokémon. |
| 036 | Protein | Raises the Attack Stat. |
| 037 | Iron | Raises the Defence Stat. |
| 038 | Carbos | Raises the Speed Stat. |
| 039 | Calcium | Raises the Special Stat. |
| 040 | Rare Candy | Increases the level of a Pokémon by 1. |
| 041 | Dome Fossil | Contains a fossilised Kabuto. |
| 042 | Helix Fossil | Contains a fossilised Omanyte. |
| 043 | Secret Key | Unlocks the Door in Cinnabar Island. |
| 045 | Bike Voucher | Used to receive a Bike. |
| 046 | X Accuracy | Increases Accuracy during Battle. |
| 047 | Leaf Stone | Used to evolve some Pokémon. |
| 048 | Card Key | Used to Open Doors inside Silph Co. |
| 049 | Nugget | Sold for a high amount. |
| 050 | PP UP | Increases the PP of a move. |
| 051 | PokéDoll | Used to distract wild Pokémon. |
| 052 | Full Heal | Heals any Status problem. |
| 053 | Revive | Revives a fainted Pokémon to half health. |
| 054 | Max Revive | Revives a fainted Pokémon to full health. |
| 055 | Guard Spec | Prevents stat reduction temporarily. |
| 056 | Super Repel | Repels wild Pokémon for 200 steps. |
| 057 | Max Repel | Repels wild Pokémon for 250 steps. |
| 058 | Dire Hit | Increases Critical Hit chance during battle. |
| 059 | Coin | The currency used. |
| 060 | Fresh Water | Heals 50HP. |
| 061 | Soda Pop | Heals 60HP. |
| 062 | Lemonade | Heals 70HP. |
| 063 | S.S. Ticket | Allows access to S.S. Ann. |
| 064 | Gold Teeth | Warden Slowpoke's false teeth. |
| 065 | X Attack | Increases the Attack Stat during battle. |
| 066 | X Defend | Increases the Defence Stat during battle. |
| 067 | X Speed | Increases the Speed Stat during battle. |
| 068 | X Special | Increases the Special Stat during battle. |
| 069 | Coin Case | Used to hold coins. |
| 070 | Oak's Parcel | Deliver to Prof. Oak. |
| 071 | Item Finder | Locates hidden items on the ground. |
| 072 | Silph Scope | Allows you to see Ghost type Pokémon. |
| 073 | PokéFlute | Used to Awaken sleeping Pokémon. |
| 074 | Lift Key | Used to access the Lifts inside Rocket's Hideout. |
| 075 | Exp. All | Experience gained will be shared between all non-fainted Pokémon inside the trainer's party. |
| 076 | Old Rod | Used to catch weak Water type Pokémon. |
| 077 | Good Rod | Used to catch Water type Pokémon. |
| 078 | Super Rod | Used to catch strong Water type Pokémon. |
| 079 | Ether | Restores 10 PP on one move. |
| 080 | Max Ether | Fully restores PP on one move. |
| 081 | Elixer | Restores 10 PP on all moves on one Pokémon. |
| 082 | Max Elixer | Fully restores PP on all moves on one Pokémon. |
| 083 | HM01 | Contains the move Cut. |
| 084 | HM02 | Contains the move Fly. |
| 085 | HM03 | Contains the move Surf. |
| 086 | HM04 | Contains the move Strength. |
| 087 | HM05 | Contains the move Flash. |
| 088 | TM01 | Contains the move Mega Punch. |
| 089 | TM02 | Contains the move Razor Wind. |
| 090 | TM03 | Contains the move Swords Dance. |
| 091 | TM04 | Contains the move Whirlwind. |
| 092 | TM05 | Contains the move Mega Kick. |
| 093 | TM06 | Contains the move Toxic. |
| 094 | TM07 | Contains the move Horn Drill. |
| 095 | TM08 | Contains the move Body Slam. |
| 096 | TM09 | Contains the move Take Down. |
| 097 | TM10 | Contains the move Double-Edge. |
| 098 | TM11 | Contains the move BubbleBeam. |
| 099 | TM12 | Contains the move Water Gun. |
| 100 | TM13 | Contains the move Ice Beam. |
| 101 | TM14 | Contains the move Blizzard. |
| 102 | TM15 | Contains the move Hyper Beam. |
| 103 | TM16 | Contains the move Pay Day. |
| 104 | TM17 | Contains the move Submission. |
| 105 | TM18 | Contains the move Counter. |
| 106 | TM19 | Contains the move Seismic Toss. |
| 107 | TM20 | Contains the move Rage. |
| 108 | TM21 | Contains the move Mega Drain. |
| 109 | TM22 | Contains the move Solar Beam. |
| 110 | TM23 | Contains the move Dragon Rage. |
| 111 | TM24 | Contains the move Thunderbolt. |
| 112 | TM25 | Contains the move Thunder. |
| 113 | TM26 | Contains the move Earthquake. |
| 114 | TM27 | Contains the move Fissure. |
| 115 | TM28 | Contains the move Dig. |
| 116 | TM29 | Contains the move Psychic. |
| 117 | TM30 | Contains the move Teleport. |
| 118 | TM31 | Contains the move Mimic. |
| 119 | TM32 | Contains the move Double Team. |
| 120 | TM33 | Contains the move Reflect. |
| 121 | TM34 | Contains the move Bide. |
| 122 | TM35 | Contains the move Metronome. |
| 123 | TM36 | Contains the move Self Destruct. |
| 124 | TM37 | Contains the move Egg Bomb. |
| 125 | TM38 | Contains the move Fire Blast. |
| 126 | TM39 | Contains the move Swift. |
| 127 | TM40 | Contains the move Skull Bash. |
| 128 | TM41 | Contains the move Softboiled. |
| 129 | TM42 | Contains the move Dream Eater. |
| 130 | TM43 | Contains the move Sky Attack |
| 131 | TM44 | Contains the move Rest. |
| 132 | TM45 | Contains the move Thunder Wave. |
| 134 | TM46 | Contains the move Psywave. |
| 135 | TM47 | Contains the move Explosion. |
| 136 | TM48 | Contains the move Rock Slide. |
| 137 | TM49 | Contains the move Tri Attack. |
| 138 | TM50 | Contains the move Subsitute. |
