Walkthrough: After Kukui shows you how to catch a Pokemon, it's up to your trainer to Battle through both Wild Pokemon and Trainers on Route 1 by yourself to get to Iki Town for the Festival. There are many trainers and Wild Pokemon found here, both on the northern and southern part of the route. The Professor's Lab can be found in the southern part of the route, the same Lab where you can change Rotom's Form later in the game in the basement of such building.
Wild Pokemon:
Initial Pokemon - Daytime (Levels 2-3): Pikipek(30%), Yungoos(30%), Ledyba(20%), Caterpie(20%)
Intial Pokemon - Nighttime (Levels 2-3): Pikipek(30%), Rattata(30%), Spinarak(20%), Caterpie(20%)
Initial Pokemon - Daytime (Levels 2-4): Pikipek(30%), Yungoos(30%), Ledyba(20%), Caterpie(20%)
Intial Pokemon - Nighttime (Levels 2-4): Pikipek(30%), Rattata(30%), Spinarak(20%), Caterpie(20%)
Initial Pokemon - Daytime (Levels 3-5): Yungoos(30%), Pikipek(20%), Ledyba(15%), Metapod(10%), Caterpie(10%), Grubbin(10%), Pichu(5%)
S.O.S. Pokemon #1 - Daytime (Levels 3-5): Yungoos, Caterpie, Pikipek, Ledyba, Grubbin, Pikachu
S.O.S. Pokemon #2 - Daytime (Levels 3-5): Yungoos, Caterpie, Pikipek, Ledyba, Grubbin, Happiny
S.O.S. Pokemon #3 - Daytime (Levels 3-5): Yungoos, Caterpie, Pikipek, Ledyba, Grubbin, Pichu
Intial Pokemon - Nighttime (Levels 3-5): Rattata(30%), Pikipek(20%), Spinarak(15%), Metapod(10%), Caterpie(10%), Grubbin(10%), Pichu(5%)
S.O.S. Pokemon #1 - Nighttime (Levels 3-5): Rattata, Caterpie, Pikipek, Spinarak, Grubbin, Pikachu
S.O.S. Pokemon #2 - Nighttime (Levels 3-5): Rattata, Caterpie, Pikipek, Spinarak, Grubbin, Happiny
S.O.S. Pokemon #3 - Nighttime (Levels 3-5): Rattata, Caterpie, Pikipek, Spinarak, Grubbin, Pichu
Initial Pokemon - Daytime (Levels 10-13): Yungoos(30%), Pikipek(20%), Bonsly(15%), Ledyba(10%), Metapod(10%), Caterpie(10%), Munchlax(5%)
S.O.S. Pokemon #1 - Daytime (Levels 10-13): Yungoos, Caterpie, Pikipek, Sudowoodo, Ledyba, Snorlax
S.O.S. Pokemon #2 - Daytime (Levels 10-13): Yungoos, Caterpie, Pikipek, Sudowoodo, Ledyba, Munchlax
S.O.S. Pokemon #3 - Daytime (Levels 10-13): Yungoos, Caterpie, Pikipek, Bonsly, Ledyba, Munchlax
S.O.S. Pokemon #4 - Daytime (Levels 10-13): Yungoos, Caterpie, Pikipek, Happiny, Ledyba
S.O.S. Pokemon #5 - Daytime (Levels 10-13): Yungoos, Caterpie, Pikipek, Bonsly, Ledyba, Munchlax
Intial Pokemon - Nighttime (Levels 10-13): Rattata(30%), Pikipek(20%), Bonsly(15%), Spinarak(10%), Metapod(10%), Caterpie(10%), Munchlax(5%)
S.O.S. Pokemon #1 - Nighttime (Levels 10-13): Rattata, Caterpie, Pikipek, Sudowoodo, Spinarak, Snorlax
S.O.S. Pokemon #2 - Nighttime (Levels 10-13): Rattata, Caterpie, Pikipek, Sudowoodo, Spinarak, Munchlax
S.O.S. Pokemon #3 - Nighttime (Levels 10-13): Rattata, Caterpie, Pikipek, Bonsly, Spinarak, Munchlax
S.O.S. Pokemon #4 - Nighttime (Levels 10-13): Rattata, Caterpie, Pikipek, Happiny, Spinarak
S.O.S. Pokemon #5 - Nighttime (Levels 10-13): Rattata, Caterpie, Pikipek, Bonsly, Spinarak, Munchlax
Trainers:
Youngster Jimmy - Level 3 Rattata
Lass Audrey - Level 3 Caterpie
Preschooler Oliver - Level 4 Yungoos
Youngster Kevin - Level 6 Grubbin
Lass Madison - Level 6 Wingull
Zygarde Cells: There is one Zygarde Core and four Zygarde Cells found on Route 1 later in the game.
Items:
Potion - Northeastern part of eastern trail
Poke Ball - Northwest of Lass Audrey
Antidote - Southwest of Lass Audrey
Potion - Northeast of Preschooler Oliver
Paralyze Heal - Northwestern part of route
Nugget - Just south of Iki Town behind rocks
Nest Ball - Just south of Iki Town