Gyms

The first gym is in Oreburgh City. After fetching Roark from Oreburgh Mine, you will be able to face the gym. This gym has no special puzzle but rather just a couple of trainers that you can bypass over bridges. At the end, you'll face Roark who uses Rock-type Pokémon. Defeat him for the Coal Badge, 5 TM76 (Stealth Rock) and the Stickers that he uses on his Pokémon. The Coal Badge allows for use of Rock Smash in the overworld through the Pokétch

Gym Leader Roark	Geodude	Onix	Cranidos
Battle Type Items	Level 12	Level 12	Level 14
	Rock Head	Sturdy	Mold Breaker
	Attacks: Stealth Rock Defense Curl Rollout	Attacks: Stealth Rock Rock Throw Bind	Attacks: Headbutt Bulldoze Leer
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item
	Nature: Impish	Nature: Adamant	Nature: Jolly

The second gym can be accessed as soon as you get to the city. This gym has a puzzle where Gardenia won't battle you until you have defeated all the other trainers in the gym. Each trainer appears in order and gives a hint as to the location of the rest. Once defeated, Gardenia will battle you with her Grass-type focused team. Defeat her for the Forest Badge, TM86 (Grass Knot) and the stickers she uses on her Poké Ball. You can also use Cut outside of battle through the Pokétch

Gym Leader Gardenia	Cherubi	Turtwig	Roserade
Battle Type Items	Level 19	Level 19	Level 22
	Chlorophyll	Shell Armor	Technician
	Attacks: Grass Knot Growth Dazzling Gleam Safeguard	Attacks: Grass Knot Razor Leaf Reflect Work Up	Attacks: Grass Knot Petal Blizzard Poison Sting Stun Spore
	Hold Item: No Item	Hold Item: Miracle Seed	Hold Item: Sitrus Berry
	Nature: Timid	Nature: Relaxed	Nature: Timid

Maylene can be battled as soon as you get to Veilstone City. This gym has a puzzle where you have to move various boards around in order to create a path to Maylene, battling trainers along the way. When you get to the end, you can face Maylene who uses Fighting-type Pokémon. Defeat her for the Cobble Badge, 5 TM60 (Drain Punch) and the stickers she uses on her Poké Balls. You can also now use Fly outside of battle using the Pokétch

Gym Leader Maylene	Meditite	Machoke	Lucario
Battle Type Items	Level 27	Level 27	Level 30
	Pure Power	Guts	Steadfast
	Attacks: Drain Punch Light Screen Flash Bulk Up	Attacks: Low Sweep Knock Off Rock Tomb Bulldoze	Attacks: Drain Punch Screech Metal Claw Bulk Up
	Hold Item: Light Clay	Hold Item: Expert Belt	Hold Item: Big Root
	Nature: Naive	Nature: Adamant	Nature: Adamant

The next gym is south in Pastoria City. This gym can also be accessed straight away and features a simple linear puzzle where you have to make your way through the gym by raising and lowering the water level, defeating trainers as you go. At the end you will face off against Crasher Wake's Water-type team. Defeat him for the Fen Badge, 5 TM55 (Brine) and the stickers he uses on his Poké Balls. You can then use Defog outside of battle

Gym Leader Wake	Gyarados	Quagsire	Floatzel
Battle Type Items	Level 27	Level 27	Level 30
	Intimidate	Damp	Swift Swim
	Attacks: Brine Ice Fang Crunch Flail	Attacks: Rain Dance Haze Mud Shot Scald	Attacks: Brine Ice Fang Bite Aqua Jet
	Hold Item: Wide Lens	Hold Item: Damp Rock	Hold Item: Sitrus Berry
	Nature: Jolly	Nature: Quiet	Nature: Adamant

The Hearthome City Gym is actually the third gym you will come across, but you won't be able to access it until after you have completed the Veilstone and Pastoria Gyms, and spoken to Fantina outside the Super Contest Hall. In the Gym, there's a simple puzzle where you read a sign and get a simple maths question. Enter the door that corresponds with the right answer and you'll move to the next floor, take the wrong door and you'll face off against a trainer. At the end is Fantina and her Ghost-type team. Defeat her for the Relic Badge, 5 TM65 (Shadow Claw) and the stickers she uses for her Poké Balls. You can also now use Surf outside of battle on your Pokétch

Gym Leader Fantina	Drifblim	Gengar	Mismagius
Battle Type Items	Level 32	Level 34	Level 36
	Aftermath	Cursed Body	Levitate
	Attacks: Strength Sap Hex Fly Will-O-Wisp	Attacks: Shadow Claw Confuse Ray Sludge Bomb Dazzling Gleam	Attacks: Confuse Ray Phantom Force Magical Leaf Dazzling Gleam
	Hold Item: Zoom Lens	Hold Item: Colbur Berry	Hold Item: Expert Belt
	Nature: Timid	Nature: Timid	Nature: Timid

The sixth gym can be accessed as soon as you reach Canalave City and is run by Byron, Roark's father. This gym has a puzzle of finding a path by utilising various small elevators and moving platforms in order to get to Byron, facing trainers along the way. At the end, you'll face Byron and his Steel-type team. Defeat him for the Mine Badge, 5 TM91 (Flash Cannon) and the stickers he uses to decorate his Poké Balls. You can then use Strength outside of battle with your Pokétch

Gym Leader Byron	Bronzor	Steelix	Bastiodon
Battle Type Items	Level 36	Level 36	Level 39
	Levitate	Sturdy	Sturdy
	Attacks: Confuse Ray Sandstorm Trick Room Flash Cannon	Attacks: Thunder Fang Earthquake Sandstorm Gyro Ball	Attacks: Iron Defense Thunderbolt Stone Edge Flash Cannon
	Hold Item: No Item	Hold Item: Soft Sand	Hold Item: Sitrus Berry
	Nature: Relaxed	Nature: Brave	Nature: Relaxed

When you first reach Snowpoint City, you can go to the gym. In this gym, you have to clear a way to Candice by sliding down the various platforms of the gym, destroying snowballs as you go. This is done by sliding on ice panels and using other snowballs and trainers to bounce off. When you reach Candice, you will have to battle her Ice-type focused team in order to get the Icicle Badge, 5 TM72 (Avalanche) and the stickers she uses on her Poké Balls. You can then use Rock Climb outside of battle

Gym Leader Candice	Snover	Sneasel	Medicham	Abomasnow
Battle Type Items	Level 38	Level 38	Level 40	Level 42
	Snow Warning	Pickpocket	Pure Power	Snow Warning
	Attacks: Mist Razor Leaf Water Pulse Avalanche	Attacks: Metal Claw Hone Claws Dig Avalanche	Attacks: Ice Punch Bulk Up Brick Break Rock Slide	Attacks: Aurora Veil Giga Drain Earthquake Blizzard
	Hold Item: Icy Rock	Hold Item: Chople Berry	Hold Item: Expert Belt	Hold Item: Sitrus Berry
	Nature: Relaxed	Nature: Jolly	Nature: Jolly	Nature: Quiet

The final gym is found in Sunyshore City. When you first enter the city, the Elite Four member Flint will introduce himself to you and explain that the Gym Leader has lost the passion and needs his passion reignited. Go find him at the lighthouse and he'll be convinced to have one final battle, else he'll take on the league himself.

The Sunyshore Gym requires you to make paths by rotating various gears with platforms on, battling trainers along the way. When you reach the end of the Gym you will face off against Volkner and his Electric-type move focused team. Defeat him to get the Beacon Badge, 5 TM57 (Charge Beam) and the stickers he uses on his Poké Balls. You can also use Waterfall outside of battle.

Gym Leader Volkner	Raichu	Ambipom	Octillery	Luxray
Battle Type Items	Level 46	Level 47	Level 47	Level 49
	Static	Technician	Sniper	Intimidate
	Attacks: Nuzzle Volt Switch Surf Charge Beam	Attacks: Fake Out Thunderbolt Double Hit Last Resort	Attacks: Octazooka Focus Energy Aurora Beam Charge Beam	Attacks: Thunder Fang Ice Fang Crunch Iron Tail
	Hold Item: Shuca Berry	Hold Item: Chople Berry	Hold Item: Expert Belt	Hold Item: Sitrus Berry
	Nature: Timid	Nature: Naive	Nature: Modest	Nature: Jolly