Hoenn and Sinnoh Pokémon :: Pokémon

Question: How do you catch the most Hoenn and Sinnoh-based Pokémon in HeartGold and SoulSilver?

Answer: Sound!

On a Wednesday, tune your PokéGear radio to the Pokémon March channel and you'll find something called the Hoenn Sound show. While this is playing, you may find Pokémon in the wild who originate from Hoenn. Likewise, the Sinnoh Sound show will broadcase on a Thursday.

Hoenn Sound

National Dex No.	Pokémon	Location(s)
263	Zigzagoon	Sprout Tower, Bell Tower, Burnt Tower
264	Linoone	Route 6, Route 9, Route 10, Route 13, Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28, Route 30, Route 31, Route 32, Route 35, Route 42, Route 43, Route 44, Route 45, Route 47, Ruins of Alph, Mt. Silver
293	Whismur	Route 6, Route 9, Route 10, Route 13, Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28, Route 30, Route 31, Route 32, Route 35, Route 42, Route 43, Route 44, Route 45, Route 47, Ruins of Alph, Mt. Silver
296	Makuhita	Union Cave, Dark Cave, Slowpoke Well, Mt. Mortar, Whirl Islands, Ice Path, Mt. Silver, The Cliff Cave, Mt. Moon, Diglett's Cave, Cerulean Cave, Rock Tunnel, Seafoam Islands, Victory Road, Tohjo Falls
307	Meditite	Sprout Tower, Bell Tower, Burnt Tower
311	Plusle	Route 1, Route 2, Route 3, Route 4, Route 5, Route 7, Route 8, Route 11, Route 14, Route 15, Route 16, Route 17, Route 18, Route 29, Route 33, Route 37, Route 36, Route 37, Route 38, Route 39, Route 46, Route 48, National Park
312	Minun	Route 1, Route 2, Route 3, Route 4, Route 5, Route 7, Route 8, Route 11, Route 14, Route 15, Route 16, Route 17, Route 18, Route 29, Route 33, Route 37, Route 36, Route 37, Route 38, Route 39, Route 46, Route 48, National Park
322	Numel	Ilex Forest, Viridian Forest
325	Spoink	Ilex Forest, Viridian Forest
327	Spinda	Sprout Tower, Bell Tower, Burnt Tower
359	Absol	Union Cave, Dark Cave, Slowpoke Well, Mt. Mortar, Whirl Islands, Ice Path, Mt. Silver, The Cliff Cave, Mt. Moon, Diglett's Cave, Cerulean Cave, Rock Tunnel, Seafoam Islands, Victory Road, Tohjo Falls

Sinnoh Sound

National Dex No.	Pokémon	Location(s)
399	Bidoof	Route 6, Route 9, Route 10, Route 13, Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28, Route 30, Route 31, Route 32, Route 35, Route 42, Route 43, Route 44, Route 45, Route 47, Ruins of Alph, Mt. Silver
403	Shinx	Route 1, Route 2, Route 3, Route 4, Route 5, Route 7, Route 8, Route 11, Route 14, Route 15, Route 16, Route 17, Route 18, Route 29, Route 33, Route 37, Route 36, Route 37, Route 38, Route 39, Route 46, Route 48, National Park
406	Budew	Ilex Forest, Viridian Forest
418	Buizel	Route 6, Route 9, Route 10, Route 13, Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28, Route 30, Route 31, Route 32, Route 35, Route 42, Route 43, Route 44, Route 45, Route 47, Ruins of Alph, Mt. Silver
433	Chingling	Union Cave, Dark Cave, Slowpoke Well, Mt. Mortar, Whirl Islands, Ice Path, Mt. Silver, The Cliff Cave, Mt. Moon, Diglett's Cave, Cerulean Cave, Rock Tunnel, Seafoam Islands, Victory Road, Tohjo Falls
436	Bronzor	Union Cave, Dark Cave, Slowpoke Well, Mt. Mortar, Whirl Islands, Ice Path, Mt. Silver, The Cliff Cave, Mt. Moon, Diglett's Cave, Cerulean Cave, Rock Tunnel, Seafoam Islands, Victory Road, Tohjo Falls
441	Chatot	Sprout Tower, Bell Tower, Burnt Tower
455	Carnivine	Ilex Forest, Viridian Forest