Gym leaders, the Elite Four and champions, rivals and villain bosses, with their full teams, read from the game itself. A game keeps several teams per boss (rematches, difficulty modes, a different starter), and its data doesn't say which is the first fight, so each boss lists their teams from the lowest level up.
Gym leaders
Leader Falkner
Fought in Violet City, Saffron City
Team 1 · up to Lv 13
| Hoothoot | Lv 12 | Tackle, Peck, Hypnosis, Echoed Voice |
| Doduo | Lv 12 | Quick Attack, Mud-Slap, Peck, Growl |
| Noctowl | Lv 13 | Tackle, Roost, Peck, Ominous Wind |
Team 2 · up to Lv 56 · Uses Full Restore ×3
| Staraptor | Lv 50 | Attract, Brave Bird, Close Combat, U-turn |
| Noctowl | Lv 52 | Roost, Air Slash, Shadow Ball, Feather Dance |
| Swellow | Lv 52 | @ Flame Orb · Facade, Protect, Double Team, Endeavor |
| Honchkrow | Lv 54 | Night Slash, Sucker Punch, Thunder Wave, Dark Pulse |
| Pelipper | Lv 48 | Surf, Tailwind, Ice Beam, Hidden Power |
| Pidgeot | Lv 56 | Return, Double Team, Swagger, Roost |
Leader Bugsy
Fought in Azalea Town, Saffron City
Team 1 · up to Lv 17 · Uses Super Potion
| Scyther | Lv 17 | @ Sitrus Berry · Quick Attack, Leer, U-turn, Wing Attack |
| Ariados | Lv 15 | Feint Attack, Infestation, Shadow Sneak, Swords Dance |
| Ledian | Lv 15 | Tackle, Supersonic, Mach Punch, Silver Wind |
Team 2 · up to Lv 56 · Uses Full Restore ×3
| Scizor | Lv 56 | @ Sitrus Berry · Bullet Punch, X-Scissor, Swords Dance, Superpower |
| Shedinja | Lv 48 | Toxic, X-Scissor, Shadow Sneak, Swagger |
| Yanmega | Lv 52 | Detect, Bug Buzz, Air Slash, Ancient Power |
| Pinsir | Lv 55 | Earthquake, Guillotine, X-Scissor, Rock Tomb |
| Heracross | Lv 54 | Close Combat, Megahorn, Stone Edge, Counter |
| Vespiquen | Lv 52 | @ Sitrus Berry · Protect, Confuse Ray, Attack Order, Defend Order |
Leader Whitney
Fought in Goldenrod City, Saffron City
Team 1 · up to Lv 21 · Uses Super Potion ×2
| Furret | Lv 19 | Quick Attack, Coil, Agility, Fury Swipes |
| Ambipom | Lv 20 | Fury Swipes, Tickle, Agility, Baton Pass |
| Miltank | Lv 21 | @ Lum Berry · Rollout, Attract, Stomp, Milk Drink |
Team 2 · up to Lv 58 · Uses Full Restore ×3
| Girafarig | Lv 52 | Psychic, Shadow Ball, Calm Mind, Baton Pass |
| Lickilicky | Lv 50 | Wring Out, Flamethrower, Ice Beam, Thunderbolt |
| Bibarel | Lv 54 | Double Team, Charge Beam, Surf, Ice Beam |
| Delcatty | Lv 54 | Fake Out, Assist, Calm Mind, Baton Pass |
| Clefable | Lv 52 | Blizzard, Thunder, Fire Blast, Calm Mind |
| Miltank | Lv 58 | @ Lum Berry · Body Slam, Attract, Sleep Talk, Rest |
Leader Morty
Fought in Ecruteak City, Saffron City
Team 1 · up to Lv 27 · Uses Hyper Potion ×2
| Gastly | Lv 26 | Hypnosis, Spite, Mean Look, Curse |
| Misdreavus | Lv 26 | Hex, Confuse Ray, Disarming Voice, Psywave |
| Gengar | Lv 26 | @ Sitrus Berry · Hypnosis, Shadow Ball, Mean Look, Sucker Punch |
| Mismagius | Lv 27 | Power Gem, Mystical Fire, Hex, Magical Leaf |
Team 2 · up to Lv 57 · Uses Full Restore ×3
| Drifblim | Lv 52 | @ Sitrus Berry · Destiny Bond, Substitute, Thunderbolt, Shadow Ball |
| Dusknoir | Lv 52 | Pain Split, Will-O-Wisp, Substitute, Payback |
| Sableye | Lv 52 | Sucker Punch, Brick Break, Ice Punch, Fake Out |
| Mismagius | Lv 54 | Perish Song, Mean Look, Confuse Ray, Astonish |
| Gengar | Lv 57 | Hypnosis, Confuse Ray, Shadow Ball, Focus Blast |
| Gengar | Lv 57 | Substitute, Shadow Ball, Thunderbolt, Destiny Bond |
Leader Chuck
Fought in Cianwood City, Saffron City
Team 1 · up to Lv 35 · Uses Hyper Potion ×2
| Hitmontop | Lv 33 | Sucker Punch, Triple Kick, Detect, Fake Out |
| Heracross | Lv 33 | @ Sitrus Berry · Horn Attack, Brick Break, Pin Missile, Aerial Ace |
| Primeape | Lv 34 | Focus Energy, Cross Chop, Rage Fist, Swagger |
| Poliwrath | Lv 35 | @ Sitrus Berry · Hypnosis, Surf, Focus Punch, Body Slam |
Team 2 · up to Lv 60 · Uses Full Restore ×3
| Medicham | Lv 54 | @ Sitrus Berry · High Jump Kick, Psycho Cut, Attract, Thunder Punch |
| Hitmonchan | Lv 52 | Mach Punch, Swagger, Focus Punch, Double Team |
| Hitmonlee | Lv 55 | High Jump Kick, Fake Out, Blaze Kick, Bulk Up |
| Breloom | Lv 54 | @ Toxic Orb · Substitute, Focus Punch, Drain Punch, Stone Edge |
| Primeape | Lv 56 | Close Combat, Payback, Thunder Punch, Swagger |
| Poliwrath | Lv 60 | @ Sitrus Berry · Double Team, Waterfall, Focus Punch, Substitute |
Leader Pryce
Fought in Mahogany Town, Saffron City
Team 1 · up to Lv 40 · Uses Hyper Potion, Full Restore
| Sneasel | Lv 36 | Hone Claws, Metal Claw, Ice Shard, Feint Attack |
| Dewgong | Lv 38 | Sleep Talk, Ice Shard, Aurora Beam, Rest |
| Abomasnow | Lv 37 | @ Abomasite · Ice Shard, Razor Leaf, Wood Hammer, Swagger |
| Delibird | Lv 37 | @ Sitrus Berry · Present, Drill Peck, Avalanche, Substitute |
| Mamoswine | Lv 40 | @ Sitrus Berry · Hail, Ice Fang, Earthquake, Ice Shard |
Team 2 · up to Lv 60 · Uses Full Restore ×3
| Abomasnow | Lv 56 | Ice Shard, Wood Hammer, Earthquake, Blizzard |
| Dewgong | Lv 58 | @ Lum Berry · Dive, Sheer Cold, Sleep Talk, Rest |
| Glalie | Lv 52 | Payback, Torment, Attract, Blizzard |
| Froslass | Lv 52 | Ice Shard, Confuse Ray, Attract, Blizzard |
| Walrein | Lv 54 | Hail, Body Slam, Swagger, Blizzard |
| Mamoswine | Lv 60 | @ Sitrus Berry · Earthquake, Avalanche, Stone Edge, Double Team |
Leader Jasmine
Fought in Olivine City, Saffron City
Team 1 · up to Lv 40 · Uses Hyper Potion ×2
| Skarmory | Lv 40 | Roar, Steel Wing, Stealth Rock, Spikes |
| Magneton | Lv 38 | Thunderbolt, Supersonic, Tri Attack, Thunder Wave |
| Scizor | Lv 37 | @ Occa Berry · Bullet Punch, Wing Attack, Fury Cutter, Swords Dance |
| Forretress | Lv 39 | Autotomize, Heavy Slam, Bug Bite, Bide |
| Steelix | Lv 40 | @ Steelixite · Screech, Dig, Rock Throw, Gyro Ball |
Team 2 · up to Lv 62 · Uses Full Restore ×3
| Metagross | Lv 52 | Meteor Mash, Bullet Punch, Gravity, Explosion |
| Magnezone | Lv 56 | Zap Cannon, Lock-On, Mirror Coat, Metal Sound |
| Skarmory | Lv 52 | Air Slash, Spikes, Night Slash, Steel Wing |
| Bronzong | Lv 50 | Gyro Ball, Hypnosis, Dream Eater, Gravity |
| Empoleon | Lv 52 | Hydro Pump, Blizzard, Aqua Jet, Roar |
| Steelix | Lv 62 | Stone Edge, Stealth Rock, Roar, Iron Tail |
Leader Clair
Fought in Blackthorn City, Saffron City
Team 1 · up to Lv 45 · Uses Hyper Potion, Full Restore
| Gyarados | Lv 42 | @ Gyaradosite · Waterfall, Dragon Rage, Bite, Dragon Pulse |
| Dragonair | Lv 42 | Thunder Wave, Fire Blast, Slam, Dragon Pulse |
| Drampa | Lv 43 | Dragon Pulse, Extrasensory, Light Screen, Echoed Voice |
| Aerodactyl | Lv 44 | @ Sitrus Berry · Thunder Fang, Fire Fang, Ice Fang, Wing Attack |
| Kingdra | Lv 45 | @ Sitrus Berry · Smokescreen, Hydro Pump, Hyper Beam, Dragon Pulse |
Team 2 · up to Lv 60 · Uses Full Restore ×3
| Gyarados | Lv 56 | @ Wacan Berry · Dragon Dance, Earthquake, Waterfall, Dragon Pulse |
| Dragonair | Lv 52 | Thunder Wave, Dragon Rush, Thunderbolt, Flamethrower |
| Aerodactyl | Lv 52 | Earthquake, Thunder Fang, Rock Slide, Roar |
| Kingdra | Lv 56 | Yawn, Hydro Pump, Ice Beam, Dragon Breath |
| Charizard | Lv 52 | Shadow Claw, Air Slash, Dragon Claw, Fire Fang |
| Dragonite | Lv 60 | @ Sitrus Berry · Thunder, Safeguard, Dragon Breath, Hyper Beam |
Team 3 · up to Lv 60 · Uses Full Restore ×2
| Dragonair | Lv 52 | Thunder Wave, Dragon Rush, Thunderbolt, Flamethrower |
| Kingdra | Lv 56 | Yawn, Hydro Pump, Ice Beam, Dragon Breath |
| Dragonite | Lv 60 | Thunder, Protect, Dragon Breath, Hyper Beam |
Leader Janine
Fought in Fuchsia City, Saffron City
Team 1 · up to Lv 59 · Uses Full Restore ×3
| Crobat | Lv 52 | Heat Wave, Cross Poison, Confuse Ray, U-turn |
| Weezing | Lv 56 | Thunderbolt, Sludge Bomb, Toxic, Explosion |
| Toxicroak | Lv 52 | Cross Chop, Poison Jab, Attract, Substitute |
| Ariados | Lv 58 | Toxic, Bounce, Swagger, Night Shade |
| Venomoth | Lv 59 | @ Sitrus Berry · Sleep Powder, Double Team, Bug Buzz, Psychic |
| Drapion | Lv 55 | Cross Poison, Confuse Ray, Crunch, Swords Dance |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Crobat | Lv 65 | @ Choice Band · Cross Poison, Leech Life, U-turn, Brave Bird |
| Amoonguss | Lv 65 | @ Black Sludge · Giga Drain, Sludge Bomb, Toxic, Spore |
| Venusaur | Lv 65 | @ Venusaurite · Sludge Bomb, Petal Blizzard, Earth Power, Giga Drain |
| Scolipede | Lv 65 | @ Focus Sash · Toxic Spikes, Baton Pass, Agility, Protect |
| Clodsire | Lv 65 | @ Sitrus Berry · Earthquake, Poison Jab, Toxic Spikes, Amnesia |
| Naganadel | Lv 65 | @ Life Orb · Venoshock, Dragon Pulse, Nasty Plot, Air Slash |
Leader Misty
Fought in Cerulean City, Saffron City
Team 1 · up to Lv 60 · Uses Full Restore ×3
| Starmie | Lv 60 | @ Colbur Berry · Thunderbolt, Psychic, Ice Beam, Surf |
| Quagsire | Lv 56 | Water Pulse, Amnesia, Earthquake, Rain Dance |
| Lapras | Lv 56 | Surf, Perish Song, Blizzard, Rain Dance |
| Lanturn | Lv 54 | Confuse Ray, Thunderbolt, Surf, Thunder Wave |
| Floatzel | Lv 54 | Agility, Ice Fang, Waterfall, Baton Pass |
| Milotic | Lv 60 | Hydro Pump, Ice Beam, Rest, Sleep Talk |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Kyogre | Lv 65 | @ Choice Scarf · Water Spout, Ice Beam, Thunder, Origin Pulse |
| Seismitoad | Lv 65 | @ Rindo Berry · Drain Punch, Liquidation, Earthquake, Ice Punch |
| Lapras | Lv 65 | @ Leftovers · Scald, Sing, Ice Beam, Perish Song |
| Starmie | Lv 65 | @ Life Orb · Scald, Psychic, Recover, Ice Beam |
| Blastoise | Lv 65 | @ Blastoisite · Water Pulse, Flash Cannon, Shell Smash, Dragon Pulse |
| Primarina | Lv 65 | @ Sitrus Berry · Sparkling Aria, Moonblast, Ice Beam, Calm Mind |
Leader Lt. Surge
Fought in Vermilion City, Saffron City
Team 1 · up to Lv 60 · Uses Full Restore ×3
| Raichu | Lv 60 | Thunder Wave, Quick Attack, Thunderbolt, Grass Knot |
| Manectric | Lv 52 | @ Pinap Berry · Thunder Wave, Natural Gift, Discharge, Overheat |
| Magnezone | Lv 52 | Thunderbolt, Double Team, Magnet Rise, Mirror Shot |
| Electrode | Lv 52 | Thunder Wave, Double Team, Thunderbolt, Explosion |
| Pachirisu | Lv 58 | Quick Attack, Super Fang, Discharge, Sweet Kiss |
| Electivire | Lv 56 | @ Sitrus Berry · Thunderbolt, Cross Chop, Ice Punch, Earthquake |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Galvantula | Lv 65 | @ Focus Sash · Sticky Web, Thunder Wave, Electroweb, Bug Buzz |
| Ampharos | Lv 65 | @ Ampharosite · Discharge, Dragon Pulse, Volt Switch, Ice Punch |
| Magnezone | Lv 65 | @ Leftovers · Supersonic, Double Team, Discharge, Flash Cannon |
| Raikou | Lv 65 | @ Choice Specs · Thunderbolt, Extreme Speed, Volt Switch, Extrasensory |
| Electivire | Lv 65 | @ Assault Vest · Ice Punch, Power-Up Punch, Thunder Punch, Close Combat |
| Raichu | Lv 65 | @ Life Orb · Nuzzle, Surf, Thunderbolt, Double Team |
Leader Erika
Fought in Celadon City, Saffron City
Team 1 · up to Lv 60 · Uses Full Restore ×3
| Shiftry | Lv 54 | Leaf Storm, Sucker Punch, Explosion, Sunny Day |
| Jumpluff | Lv 53 | U-turn, Memento, Sleep Powder, Giga Drain |
| Victreebel | Lv 56 | @ Kelpsy Berry · Natural Gift, Sludge Bomb, Leaf Storm, Leaf Blade |
| Bellossom | Lv 56 | Sunny Day, Solar Beam, Giga Drain, Attract |
| Tangrowth | Lv 60 | Swords Dance, Power Whip, Rock Slide, Earthquake |
| Roserade | Lv 55 | Weather Ball, Energy Ball, Sludge Bomb, Stun Spore |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Jumpluff | Lv 65 | U-turn, Leech Seed, Acrobatics, Bullet Seed |
| Tangrowth | Lv 65 | @ Rocky Helmet · Ancient Power, Stun Spore, Giga Drain, Sleep Powder |
| Rillaboom | Lv 65 | @ Assault Vest · Wood Hammer, Knock Off, Slam, StompingTantrum |
| Ludicolo | Lv 65 | @ Leftovers · Fake Out, Surf, Giga Drain, Ice Beam |
| Sceptile | Lv 65 | @ Sceptilite · Dragon Pulse, Energy Ball, Vacuum Wave, Agility |
| BruteBonet | Lv 65 | @ Choice Band · Sucker Punch, Seed Bomb, Close Combat, Crunch |
Leader Sabrina
Fought in Saffron City
Team 1 · up to Lv 60 · Uses Full Restore ×3
| Alakazam | Lv 60 | Gravity, Focus Blast, Energy Ball, Psychic |
| Espeon | Lv 58 | Calm Mind, Baton Pass, Shadow Ball, Psychic |
| Mr. Mime | Lv 56 | Reflect, Skill Swap, Thunder, Psychic |
| Jynx | Lv 54 | Blizzard, Perish Song, Psychic, Focus Blast |
| Wobbuffet | Lv 53 | Counter, Mirror Coat, Destiny Bond, Encore |
| Gallade | Lv 53 | @ Sitrus Berry · Close Combat, Psycho Cut, Night Slash, Stone Edge |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Reuniclus | Lv 65 | @ Leftovers · Light Screen, Reflect, Recover, Psyshock |
| Espeon | Lv 65 | @ Wise Glasses · Shadow Ball, Skill Swap, Calm Mind, Psychic |
| Gardevoir | Lv 65 | @ Life Orb · Moonblast, Psychic, Wish, Double Team |
| Alakazam | Lv 65 | @ Choice Specs · Focus Blast, Psychic, Energy Ball, Dazzling Gleam |
| Metagross | Lv 65 | @ Metagrossite · Bullet Punch, Zen Headbutt, Meteor Mash, Hammer Arm |
| Cresselia | Lv 65 | @ Sitrus Berry · Moonlight, Safeguard, Toxic, Psychic |
Leader Brock
Fought in Pewter City, Saffron City
Team 1 · up to Lv 61 · Uses Full Restore ×3
| Golem | Lv 55 | Sandstorm, Rock Slide, Rock Polish, Earthquake |
| Relicanth | Lv 54 | @ Lum Berry · Head Smash, Aqua Tail, Earthquake, Rest |
| Omastar | Lv 56 | Ancient Power, Brine, Protect, Sandstorm |
| Onix | Lv 61 | @ Sitrus Berry · Stealth Rock, Rock Slide, Rock Polish, Sandstorm |
| Kabutops | Lv 55 | Rock Slide, Aqua Jet, Endure, Giga Drain |
| Rampardos | Lv 57 | Earthquake, Stone Edge, Avalanche, Rock Polish |
Team 2 · up to Lv 65 · Uses Full Restore ×3
| Golem | Lv 65 | @ Focus Sash · Stealth Rock, Rock Slide, Heavy Slam, Sandstorm |
| Tyrantrum | Lv 65 | @ Choice Scarf · Dragon Claw, Head Smash, Earthquake, Crunch |
| Carracosta | Lv 65 | @ Life Orb · Aqua Jet, Shell Smash, Crunch, Superpower |
| Armaldo | Lv 65 | @ Sitrus Berry · X-Scissor, Rock Blast, Brick Break, Liquidation |
| Aerodactyl | Lv 65 | @ Aerodactite · Wing Attack, Fire Fang, Crunch, Thunder Fang |
| IronThorns | Lv 65 | @ Choice Band · Thunder Fang, Rock Slide, Earthquake, Fire Fang |
Leader Blaine
Fought in Seafoam Islands, Saffron City
Team 1 · up to Lv 62 · Uses Full Restore ×3
| Torkoal | Lv 54 | Sunny Day, Yawn, Body Slam, Overheat |
| Camerupt | Lv 57 | Earthquake, Eruption, Solar Beam, Sunny Day |
| Rapidash | Lv 60 | Megahorn, Quick Attack, Overheat, Flare Blitz |
| Magcargo | Lv 58 | Curse, Gyro Ball, Overheat, Stone Edge |
| Houndoom | Lv 54 | Shadow Ball, Dark Pulse, Flamethrower, Sucker Punch |
| Magmortar | Lv 62 | Thunderbolt, Low Kick, Flamethrower, Confuse Ray |
Team 2 · up to Lv 80 · Uses Full Restore ×3
| Charizard | Lv 80 | @ Charizardite Y · Air Slash, Heat Wave, Flamethrower, Dragon Breath |
| Magmortar | Lv 80 | @ Choice Specs · Scald, Flamethrower, Fire Blast, Solar Beam |
| Infernape | Lv 80 | @ Life Orb · Close Combat, Mach Punch, Bullet Punch, Flare Blitz |
| Ninetales | Lv 80 | @ White Herb · Moonblast, Solar Beam, Flamethrower, Nasty Plot |
| Rapidash | Lv 80 | @ Choice Scarf · Wild Charge, Flare Blitz, Zing Zap, Poison Jab |
| Reshiram | Lv 80 | @ Assault Vest · Fusion Flare, Dragon Pulse, Extrasensory, Hyper Voice |
Leader Blue
Fought in Viridian City, Saffron City
Team 1 · up to Lv 72 · Uses Full Restore ×4
| Exeggutor | Lv 67 | Leaf Storm, Psychic, Explosion, Trick Room |
| Machamp | Lv 69 | @ Iron Ball · Dynamic Punch, Stone Edge, Fling, Attract |
| Rhyperior | Lv 70 | Megahorn, Stone Edge, Thunder Fang, Earthquake |
| Arcanine | Lv 68 | Flare Blitz, Extreme Speed, Thunder Fang, Crunch |
| Tyranitar | Lv 70 | Low Kick, Fire Fang, Rock Slide, Earthquake |
| Pidgeot | Lv 72 | @ Sitrus Berry · Return, Double Team, Air Slash, Steel Wing |
Team 2 · up to Lv 90 · Uses Full Restore ×4
| Mew | Lv 90 | @ Leftovers · Dragon Dance, Baton Pass, Psychic, Ancient Power |
| Arcanine | Lv 90 | @ Choice Band · Iron Head, Play Rough, Flare Blitz, Extreme Speed |
| Rhyperior | Lv 90 | @ Rocky Helmet · Megahorn, Stone Edge, Thunder Fang, Earthquake |
| Gyarados | Lv 90 | @ Wacan Berry · Ice Fang, Waterfall, Dragon Dance, Return |
| Machamp | Lv 90 | @ Assault Vest · Dynamic Punch, Earthquake, Stone Edge, Thunder Punch |
| Pidgeot | Lv 90 | @ Pidgeotite · Hurricane, Whirlwind, Roost, Hyper Beam |