Superstructure
In the games, the Indigo Plateau is depicted as a large building surrounded by mountainous areas. The Indigo Plateau area changes in every generation, however in every generation there is a small area at the entrance that connects the exit of Victory Road to the Indigo Plateau. In Generation I, there is a narrow passageway, where giant statues act as barriers which lead to the entrance. In Generation II, the area between Victory Road and Indigo Plateau is shorter and wider, and the statues have been removed only to be replaced by trees. In Generation III, there is a flight of stairs that leads up to the Indigo Plateau, with a small area outside the entrance with a couple of giant statues. Generation IV, the pathway is the same as Generation II but much fancier. There are two archways each with a small set of stairs above them and Poké Ball statues that appear left and right across the path.
Structure
Ground floor
On the ground floor is a combined Poké Mart and Pokémon Center. This is the last safe stop before Trainers make their way up to the upper floors, therefore, Trainers can purchase and stock up on items, as well as heal their Pokémon before leaving. There are a number of things, a player can do on this floor. A nurse heals all status conditions, recharges HP and PP of all party Pokémon, free of charge. The nurse is located at the main counter just as the player enters the Indigo Plateau. It also hosts the Cable Club and the Union Room, which facilitates multiplayer gameplay and link players to battle and trade one another. Trainers also have access to a PC so that they can change out their party. Players are able to deposit and withdraw Pokémon, along with ability to store and withdraw items. Trainers can also buy items from the Poké Mart. The Poké Mart stock rare items that can only be found in the Indigo Plateau.
In Generation II, the layout of the ground floor is slightly modified, with the Cable Club and the Union Room relocated upstairs. The PC is now located in the middle of the room, while the Nurse is located on the left of it, and the Poké Mart is located on the right of it. When the player tries to go through the hallway to challenge the Elite Four, the rival will force the player to a battle. There is also a Trainer standing near the counter that will ask the player if they miss their home, and will use an Abra to Teleport the Trainer back to their home. He will disappear after the player defeats the Elite Four and Champion for the first time.
In Generation III, the ground floor is similar to the ground floor in Generation I, however the Cable Club and the Union Room is also relocated upstairs. There are a couple of Trainers waiting or resting from training in Victory Road.
First room
Once Trainers climb the first staircase, they will reach the first room, and upon entering the door will lock so they are unable to return back. The door to the second room is also locked and the only way to open the door and progress through each room is to defeat the Elite Four member of that room.
During Generation I and III, Lorelei is in control of this room, thus is the first member of the Elite Four that must be defeated. Because she uses Template:Type2 Pokémon, her room is surrounded by ice, however it is more like water, and in fact behaves exactly like water in Generation I, right down to being able to catch Pokémon by fishing with the Old and Good Rods. From the entrance there is a small bridge connected to the batting arena, where Lorelei stands waiting for battle.
In Generation II, the room hasn't actually changed dramatically to custom to Will's design, despite the fact that he trains a completely different type. Like Lorelei's design, there are pools of frozen water on both sides of the battling arena. There is a narrow bridge connected to the batting arena where Will stands waiting for battle.
In Generation III, Lorelei's room changes from the icy environment it was to a plain room with six large statues surrounding the battle arena.
In Generation IV, the room is redesigned to accustom to Will's liking. It features a room shaped much like his Generation II room, except with a purple tiled floor. Floating, transparent cubes bob around the room, rising seemingly from a black pit where in Generation II there was ice.
For more information on Lorelei's party, see here.
For more information on Will's party, see here.
Second room
The second room can be accessed after defeating the Elite Four member of the previous room. Like the room before it, the doors to other rooms will lock so Trainers are unable to return back or advance forward.
In Generation I and III, Bruno is the owner of this room, and has designed it according to his Template:Type2 specialties. The room is full of giant boulders that surround the battle field, and a Pokémon statue in the corner.
In Generation II, Bruno, the former owner of the room has been replaced by Koga, the former Gym Leader, still using his signature Template:Type2 Pokémon. The room has been redesigned and customized to meet the needs of his Poison Pokémon, which now has a grassy floor with many trees towering over the area.
In Generation III, Bruno's room changes from the rocky environment it was to a plain room with six large statues surrounding the battle arena.
In Generation IV, Koga once again claims this room. The room is shaped much like his Generation II room. The floor is covered in grass, but this time Koga stands in the middle of a large rectangle of stone. The sides of the room show the shadows of trees. The stone and wall supports are adorned with moss.
For more information on Bruno's party, see here.
For more information on Koga's party, see here.
Third room
The third room can be accessed after defeating the Elite Four member of the previous room. Like the room before it, the doors to other rooms will lock so Trainers are unable to return back or advance forward.
In Generation I and III, Agatha is the owner of this room, and has designed it according to her own Template:Type2 specialties. The room is full of giant gravestones that surround the battle field. Trainers must navigate their way around these gravestones to get to Agatha. There are gravestones on both side of the battling arena, and a Pokémon statue in the bottom left hand corner.
In Generation II, Agatha, the former owner of the room has been replaced by Bruno, the former owner of the second room, who has been promoted and has now taken her place, still using his signature Template:Type2 Pokémon. The room has been redesigned and customized now with pools of lava bubbling left and right of the battle arena. There is a narrow bridge connected to the batting arena where Bruno stands waiting for battle.
In Generation III, Agatha's room changes from the eerie environment with gravestones to a plain room with six large statues surrounding the battle arena.
In Generation IV, Bruno has this room, and it once again is roughly the shape of his Generation II room. The pit is once again filled with lava, but two large tubs line the side of the room, giving it a refinery feel.
For more information on Agatha's party, see here.
For more information on Bruno's party, see here.
Fourth room
The fourth room can be accessed after defeating the Elite Four member of the previous room. However, unlike the previous rooms before it, once a Trainer advances through the doors to the fourth room, they will automatically travel through the room to face off with the final Elite Four member. So it would be wise for Trainers to prepare for the final Elite Four member before they enter the fourth room. This will only happen in Generation I and III, however. In Generation II, the Trainer will advance to the fourth room normally.
In Generation I and III, the room enters in a long, narrow pathway that curves around in a 'S' shape. The pathway will end in with a battle arena where Lance will be standing. There are many Pokémon statues surrounding the battle arena.
In Generation II, Karen is the current owner of the fourth room, and it is like any other room within the Elite Four. The room has been redesigned and customized now with a deep, dark pit left and right of the battle arena. There is a narrow bridge connected to the batting arena where Karen stands waiting for battle.
In Generation IV, Karen has this room again. The room is shaped like her old Generation II room. The pit, however, is now filled with green crystals. The floor is purple with a star pattern and stage curtains are hung behind Karen, corresponding with the movie star look of Karen in this generation.
For more information on Lance's party, see here.
For more information on Karen's party, see here.
Champion's room
Once a Trainer defeats the final member of the Elite Four, they will go on to the champion's room. The current champion awaits in his room for the final battle to unfold. Like the previous four rooms, the Champion's room will automatically direct the Trainer to the Champion.
In Generation I and III, the Champion is Blue, who had become the Champion just recently. The battlefield is a small room, with two entrances; one that leads from the fourth room, the other leads to the Hall of Fame.
In Generation II and IV, the Champion is Lance, formerly the fourth Elite Four member, who continues to use Template:Type2s. The room has a long hall decorated with Dratini statues (regular statues in Gold and Silver) left and right of the path. At the end of the hall, the player reaches an elevated part of the room where Lance awaits. Behind him are double doors that lead to the Hall of Fame. In Generation IV, this room is gold colored, with a red carpet going down the middle and moving gears on the walls.
For more information on Blue's party, see here.
If the player chose Bulbasaur:
If the player chose Charmander:
If the player chose Squirtle:
For more information on Lance's party, see here.
Hall of Fame
Once, the Champion is finally defeated, there is a great congratulations and the respective Trainer will be recorded in the Hall of Fame and made current champion. The Hall of Fame is a record kept by the Pokémon League of all the Pokémon Trainers who have ever beaten the Elite Four and the Pokémon Champion. In the hall of Fame recording room, Professor Oak will be waiting for Trainers to congratulate and finally record. It is a fairly large room, that only contains a large computer. The Hame of Fame will record all Trainer's ID number, name, and Pokémon team are recorded. For each Pokémon of the player's party, the species, name, gender, level, and area met are recorded.
After becoming Champion, the player returns home, rather than staying at the Pokémon League to fight challengers. The previous Champion keeps his/her position. This may be a decision of the player character and his/her family rather than official Pokémon League rules, as Champion Blue also keeps his position.