Pokémon HeartGold Version - Catching Ho-Oh

At the top of the Bell Tower, save your game before you begin to interact. Ho-Oh is on Level 45. Its signature move is Sacred Fire, which has a 50% chance of burning the target. The move can also be used if the user is frozen and thaws it out. Ultra Balls would be recommended to capture it, or you can wait until night to use Dusk Balls.