Where to find Pokémon in Hoenn at Route 121 (Pokémon Ruby, Sapphire & Emerald)

Pokémon at Route 121

Pokémon	How	Level	Chance	When
Kecleon	Walk	25	1%
Duskull	Walk	26–28	30%	Ruby only
Linoone	Walk	26–28	20%	Ruby, Sapphire only
Mightyena	Walk	26–28	20%	Emerald only
Oddish	Walk	26–28	15%
Poochyena	Walk	26	20%	Emerald only
Shuppet	Walk	26–28	30%	Sapphire, Emerald only
Wingull	Walk	26–28	9%
Zigzagoon	Walk	26	20%	Ruby, Sapphire only
Gloom	Walk	28	5%
Magikarp	Good Rod	10–30	60%
Tentacool	Good Rod	10–30	20%
Wailmer	Good Rod	10–30	20%
Magikarp	Old Rod	5–10	70%
Tentacool	Old Rod	5–10	30%
Tentacool	Surf	5–35	60%
Wingull	Surf	10–30	35%
Pelipper	Surf	25–30	5%
Wailmer	Super Rod	20–45	100%

Beauty Jessica: Kecleon Lv 29, Seviper Lv 29
Bug Maniac Cale: Dustox Lv 29, Beautifly Lv 29
Cooltrainer Cristin: Loudred Lv 29, Vigoroth Lv 29
Cooltrainer Marcel: Manectric Lv 29, Shiftry Lv 29
Gentleman Walter: Manectric Lv 29
Hex Maniac Tammy: Duskull Lv 29, Shuppet Lv 29
Pokémon Breeder Myles: Makuhita Lv 25, Wingull Lv 25, Tropius Lv 25, Zigzagoon Lv 25, Electrike Lv 25, Numel Lv 25
Pokémon Breeder Pat: Poochyena Lv 25, Shroomish Lv 25, Electrike Lv 25, Marill Lv 25, Sandshrew Lv 25, Gulpin Lv 25
Pokéfan Vanessa: Pikachu Lv 30
Sr. And Jr. Kate: Spinda Lv 30, Slaking Lv 32
Sr. And Jr. Kate & Joy: Spinda Lv 30, Slaking Lv 32