>.> Hmm... I've got a suspicion that you didn't actually try this a month ago.
>The following Poké Balls were introduced in Pokémon Gold and Silver. These Poké Balls were not available in Generation III or in Pokémon Diamond, Pearl, and Platinum, but made their return in Pokémon HeartGold and SoulSilver. Seven of them are made from Apricorns by Kurt, while the only one that is not is seen by some to be a counterpart to the Safari Ball in that it is only used in the Bug-Catching Contest in National Park. All eight of these Poké Balls have the same animation as a normal Poké Ball when sending out or recalling a Pokémon, rather than the variety of colors and special effects the Poké Ball variants released in other generations have.
>When a Pokémon in one of these Balls is used in a link battle in Generation IV, it will appear as an ordinary Poké Ball, regardless of if the link is made with a Johto or Sinnoh-based game. Using a Pokémon in one of these Balls in one of the Battle Frontier facilities will show it as it should appear during the battle, but as an ordinary Poké Ball if the battle is saved to the Vs. Recorder and played back. Trading a Pokémon in one of these Poké Ball variations into Diamond, Pearl, and Platinum or registering it in Pokémon Battle Revolution will cause it to display as a normal Poké Ball, though if the Pokémon is traded back into a Johto-based game or transferred forward into Generation V, it will regain its variant Ball.
>In Generation IV, none of these Poké Balls can be held due to not existing in Pokémon Diamond, Pearl, and Platinum.
>In Pokémon data, information for these Poké Balls on the status screen and in battle is stored in a separate location from the variants introduced in other generations, so that the Pokémon can be traded back to Diamond, Pearl, and Platinum from HeartGold and SoulSilver and display an ordinary Poké Ball there (the data space for these balls being ignored in the earlier games).