Buneary evolves into Lopunny when its friendship (happiness) with your trainer is high enough and then it gains a level.

Basic evolution method

  • Buneary does not evolve just by reaching a certain level; it needs high friendship first.
  • Once Buneary’s friendship is high (commonly around 220+ in the main games), let it level up one time, and it will try to evolve into Lopunny.

How to raise friendship

  • Keep Buneary in your party, walk around, and battle with it without letting it faint often.
  • Use friendship-boosting methods like holding a Soothe Bell, giving it vitamins or certain berries, and massages or similar services where available in your game.

Why it may not be evolving

  • Buneary starts with very low base friendship, so it usually takes longer than many other friendship evolutions.
  • If you let it faint a lot, use bitter medicines, or rarely keep it in your active party, its friendship growth slows or even drops, preventing evolution.

Game-to-game note

  • In recent titles (including Pokémon Legends: Z-A), the core rule remains: raise friendship, then trigger a level-up to evolve Buneary into Lopunny.
  • Some games offer extra tools like friendship-checker NPCs or icons that show when Buneary is ready to evolve after leveling up.

Information gathered from public forums or data available on the internet and portrayed here.