As a Pokémon expert, I can tell you that evolving a Riolu into a Lucario in the Pokémon games typically involves a few different methods, depending on the specific game you're playing. Here's a step-by-step guide:


1. Level Up: In some games, Riolu evolves into Lucario when it levels up. This usually happens at a specific level, which can vary from game to game.


2. High Friendship and Level Up: In other games, you need to have a high friendship level with your Riolu and then level it up during the day or while it's in the first slot of your party.


3. Mystic Water or Metal Coat: In some games, you can hold Riolu with a specific item, like a Mystic Water or a Metal Coat, and then level it up to evolve.


4. Special Event: There have been special events where Riolu evolves under unique circumstances, such as being in a specific location or having a certain move.


5. Shiny Evolution: If you're looking to evolve a Shiny Riolu, the process is the same as evolving a regular Riolu.

Remember, the method can change based on the game version, so it's important to know which game you're playing.

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To get Riolu to evolve, you need to get his happiness up to the fourth level and then get him a level up during the daytime. There are a number of ways to increase a Pokemon's happiness. The simplest way is to equip the Pokemon with the Soothe Bell and walk around with it.read more >>