Q&A for How to Get All of the Eevee Evolutions in Pokémon HeartGold/SoulSilver

Sylveon was introduced in later generations, so you cannot obtain it in HeartGold or SoulSilver.

No, you cannot obtain Leafeon or Glaceon directly in Pokémon HeartGold or SoulSilver. These evolutions require specific locations found only in Pokémon Diamond, Pearl, and Platinum, which are not present in HeartGold or SoulSilver.

You can quickly raise a Pokémon's happiness by having it hold the Soothe Bell and engaging in happiness-raising activities, such as walking with it.

No. You can trade for additional Eevees or breed one of your Eevees with a Ditto (or another Eevee) to obtain more eggs.

There isn't a simpler method to obtain Umbreon. To evolve Eevee, you need to maximize its friendship and then level it up only at night.

In Pokémon HeartGold and SoulSilver, you can find her in Goldenrod City. Look for a house located just north of the bike shop.

In Goldenrod's underground tunnel, two men offer daily haircuts for your Pokémon.

No, you cannot obtain Sylveon in Pokémon SoulSilver. Sylveon was introduced in Generation 6 (Pokémon X and Y), and HeartGold and SoulSilver are Generation 4 games that only feature Pokémon from Generations 1 through 4.

No, Pikipek is not an Eevee evolution. Additionally, it is only available in Pokémon Generation 7 games, Sun and Moon.

No, you cannot obtain Glaceon in Pokémon HeartGold or SoulSilver without trading. These games do not feature the Ice Rock, which is required for Eevee to evolve into Glaceon.

Without access to Celadon, you are limited to evolving the single Eevee you obtain during the story. To acquire other Eevee evolutions, trading is the only method.

When leveling up your Pokémon while it holds a Soothe Bell, you will gain additional happiness. The Soothe Bell increases happiness gains by 50%, resulting in approximately: +7.5 happiness (for 0-99 current happiness), +4.5 happiness (for 100-199), and +3 happiness (for 200-249). Pokémon generally begin with 70 happiness and require 220 happiness to evolve.

You can find Bill on the west side of Goldenrod City. From the Goldenrod City Pokémon Center, walk between the Pokémon Center and the Casino walkway; his small, yellow house will be the first accessible one. Inside, ensure you have an empty slot in your party before speaking with him to receive an Eevee, provided you have previously visited the Ecruteak City Pokémon Center.