How do you get a love ball in Pokemon HeartGold?

You can't get a Love Ball in Pokemon HeartGold. It was introduced in Generation IV games (Diamond, Pearl, and Platinum) and is not available in Generation II remakes (HeartGold and SoulSilver).

Here's a breakdown of how you can get Love Balls in later games:

* Generation IV and later: You can buy Love Balls from the Game Corner in Veilstone City (Diamond and Pearl) or the Resort Area in the Postgame (Platinum) once you have the Poketch App, "Berry Blender."

Remember, Love Balls have a higher catch rate for Pokemon that have a high friendship level with the trainer.