In the Nintendo DS game Pokmon White 2, Riolu is a Fighting-type Pokmon that can evolve into Lucario, a powerful and popular Pokmon. To evolve Riolu into Lucario, players must meet certain requirements, including raising Riolu’s friendship level and leveling it up during the day.
To raise Riolu’s friendship level, players can interact with it in various ways, such as talking to it, giving it items, and battling with it. Players can also use the soothe bell item to increase Riolu’s friendship level more quickly. Once Riolu’s friendship level is high enough, players can level it up during the day to trigger its evolution into Lucario.