Walkthrough: Once you come to Heahea City, you will find Lillie and Kukui arrive at the docks. After doing so, you will also meet Olivia, the Kahuna of Akala Island, and Mallow, one of the Akala Island Trial Captains. Form there, you will be prompted to explore Heahea City. After meeting Lillie near one of the shops, you will be lead to the northern part of Heahea City. Here, you will meet Dexio and Sina, Professor Sycamore's Assistants from the Kalos Region, which will end in a friendly battle.
Pikachu - From Surfer After Completing Mantine Surf
Trainers:
Pokemon Trainer Sina - Level 15 Smoochum, Level 15 Glaceon
Items:
Full Restore - From Dexio & Sina
Big Mushroom - Near Research Lab
Premier Ball - From Man In Top Left Ferry Terminal
Lemonade - From Lady In GameFreak Building
Oval Charm - Defeat GameFreak Morimoto & Iwao After Main Story
Shiny Charm - Show GameFreak Director Complete Alola Region Pokedex
Poke Ball - From Person In Aether Building
Reveal Glass - From Burnet After Defeating Kahuna Olivia
Charcoal - Show Bellhop A Magmar
Oran Berry - Get Chased By Bellossom In Hotel
Fresh Water - In Hotel Room With Dancer, Comfey & Bellossom
Swift Wing - On Balcony of Dancer, Comfey & Bellossom Room
Revive - Far Left Room In Hotel
Health Wing - Far Left Hotel Room Balcony
Mewnium Z - Show Man In Hotel A Mew
Snorlium Z - Show Man In Hotel A Snorlax
Marshadium Z - Show Man In Hotel A Marshadow
Rare Candy - From Woman Near Apparel Shop
Revival Herb - Reunite Hotel Man With His Old Friends
Fast Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Friend Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Heavy Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Level Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Love Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Lure Ball - Show GameFreak Staff Transferred Gold/Silver Digital Console Pokemon
Super Repel (Hidden) - Near Lamppost Outside Research Lab
PokeMart Items (Throughout Game Progression):
Poke Ball - Great Ball - Ultra Ball - Potion - Super Potion - Hyper Potion - Max Potion - Full Restore - Revive - Antidote - Paralyze Heal - Awakening - Burn Heal - Ice Heal - Full Heal - Escape Rope - Repel - Super Repel - Max Repel - Honey - Poke Toy - Adrenaline Orb
TM16 - TM17 - TM20 - TM33 - TM70
Post Game
Details: After defeating the Main Story, you can return to Heahea City to battle GameFreak's Morimoto & Iwao. You will also find the Flareon User here during your Eevee Quest.
Trainers:
Flareon User Chad - Level 55 Flareon
GameFreak Iwao - Level 56 Kecleon, Level 56 Ambipom, Level 56 Blissey
GameFreak Morimoto - Level 57 Gengar, Level 57 Machamp, Level 57 Dragonite