There are more Pokémon to find and add to your collection in Pokémon Brilliant Diamond and Brilliant Pearl. You will need to be on the lookout for Zubat so that you can evolve into Golbat. Eventually, you can evolve Golbat into Crobat. But there is a particular requirement that you have to meet for this to happen. In this guide, we will detail how you evolve Golbat into Crobat in Pokémon Brilliant Diamond and Brilliant Pearl.
When you are looking to evolve your Golbat into a Crobat, you need to increase your Golbat's friendship. There are several ways to do this in Pokémon Brilliant Diamond and Brilliant Pearl. You can use him in battle, make sure he wins and doesn't pass out, walk around with him outside of a Poké Ball, feed him any Poffin he likes, and give him a massage from the Pokémon Massager in Veilstone City.
Even if you need to reach a friendship level, it's usually best to try to maximize it. You can control the happiness of your Golbat by using the Friendship Asset you receive from the Aroma Lady in Eterna City. When you max out, simply level up Golbat once and it will evolve into Crobat shortly thereafter.