A small group of islands found on the Lake of Battles behind the academy. It houses a number of facilities and many formidable frontier brains. The list for the brains will be posted soon. The auditions will be held in the Pokemon Theater.
Brain-in-charge: Emerald
Frontier Brains[]
Glalie Kokoro
Glalie "Glal" Kokoro is the Hall Executive, head of the Battle Hall. He others the Nostalgic Symbol upon victory. His entire Pokemon arsenal contains thirteen Pokemon, however, as yet he has only used nine of those in battles. The nine he has used are:-
| Species | Nickname | Type | Attacks | Ability |
| Glalie | Akaime | Ice | Avalanche, Earthquake, Crunch, Explosion | Inner Focus |
| Starmie | Mizuhoshi | Water / Psychic | Surf, Psychic, Thunderbolt, Ice Beam | Natural Cure |
| Umbreon | Tsukuyomi | Dark | Payback, Curse, Toxic, Wish | Synchronize |
| Glalie | Oni | Ice | Ice Beam, Shadow Ball, Water Pulse, Blizzard | Ice Body |
| Medicham | Yoda | Fighting / Psychic | Force Palm, Psycho Cut, ThunderPunch, Ice Punch | Pure Power |
| Machamp | Hulk | Fighting | Close Combat, Stone Edge, Bullet Punch, Fire Punch | No Guard |
| Jynx | Geisha | Ice / Psychic | Ice Beam, Lovely Kiss, Substitute, Dream Eater | Forewarn |
| Glaceon | Grace | Ice | Ice Beam, Roar, Mirror Coat, Wish | Snow Cloak |
| Tentacruel | Squidward | Water / Poison | Surf, Sludge Bomb, Mirror Coat, Toxic Spikes | Clear Body |
Trainers who wish to battle Glal must first make their way through the battle hall. In total they must complete a number of campaigns, each campaign begins in a room with three doorways.
Lights above the door ways flash, the trainer must then proceed through the door that the lights indicate, however as the campaign continues the number of lights gets more and more, and certain twists take place. Once you reached the last room the lights indicate you must battle a trainer.
After completing three compaigns Trainer may battle Glal for the Silver Nostalgic Print and then, upon completeling it a further ten times they battle him for the Gold Nostalgic Print