What about to get into the Elite Four, you have to find all of the other badges, including all eight gym badges. Here's where they would be hidden:
*Balance Badge- Found in the cave that Mewtwo inhabits.
*Basic Badge- First badge you find, found in your starting town.
*Beacon Badge- Found next to a lamppost in ________ town.
*Boulder Badge- Found at the bottom of a rock slide on ________ Mountain.
*Bolt Badge- Found near Raikou's domain.
*Cascade Badge- Must shoo away (fight) 3 seakings guarding a waterfall, behind the waterfall is the Cascade Badge.
*Coal Badge- Found in Drilbur coal mines (Or any mine/Hole.)
*Cobble Badge- Must take it away from a skittish graveler on ________ Mountain.
*Dynamo Badge- Talk to construction worker in _________ City.
*Earth Badge- Convince an Ariados to not eat it in _________ Grotto.
*Feather Badge- Fight a red boss Fearow and two pidgeotto's to obtain it.
*Fen Badge- Given to you if you beat the Old witch in __________ Swamps.
*Fog Badge- Found in Suicune's domain.
*Forest Badge- Chase down ________ Grunts in the _________ Forest.
*Freeze Badge- Given to you by the elder of the snowy __________ Town.
*Glacier Badge- Found at Articuno's Shrine.
*Heat Badge- Found in Entei's domain.
*Hive badge- Defeat a red boss beedrill, 5 kakunas, and a green boss Butterfree.
*Icicle Badge- Talk to the Mamoswine breeder near __________ City.
*Insect Badge- Found in the Apricorn fields of __________ Town.
*Jet Badge- Found in the __________ Airport.
*Knuckle Badge- Defeat the sensei of ___________ Dojo ontop of __________ Mountain.
*Legend Badge- Found in the legendary worshipers secret base underneath the ________ Ocean.
*Marsh Badge- Reason with a gang of trainers called the ________ Gang in the ________ Marsh.
*Mind Badge- Given to you buy Celebi.
*Mine Badge- Complete the Miner's quests at the ___________ Mines.
*Mineral Badge- Visit every mine (Coal, Thunderstone, Waterstone, Leafstone, Moonstone, Dusk stone, Sun stone, Firestone, Aluminum, Dawnstone, Crystal, and Amethyst, Ruby, and Sapphire Mines.) Then talk to the miner at __________ Town.
*Plain Badge- Rescue Chansey, Persian, Chatot, and Aipom from __________ Grunts.
*Quake Badge- Given to you by ________ after defeating Groudon.
*Rain Badge- Given to you by _________ after defeating Kyogre.
*Rainbow Badge- Found in Ho-oh's Tower after defeating it.
*Relic Badge- Found at the Unown Ruins.
*Rising Badge- Defeat two Lampents, 3 Litwicks, and a yellow boss Chandelure for terrorizing __________ Town.
*Soul Badge- Given to you by Mew in the ________ Meadows.
*Stone Badge- Find and revive every fossil, then talk to the scientist at ______ Laboratory's.
*Storm Badge- Found at the Whirlpool isles after defeating Lugia.
*Thunder Badge- Found at Zapdos's shrine atop _________ Mountain.
*Toxic Badge- Clear the streets of _______ City from the poison types, then talk to the mayor.
*Trio Badge- After defeating both trio's, talk to the leader of the _______ Tribe.
*Volcano Badge- Found near Moltres's shrine.
*Wave Badge- Defeat surfers at _______ Beach.
*Zephyr Badge- Found at Rayquaza's tower after defeating it.
By defeating i mean capture of course