>Good, simple design. Could have been better if it was designed with solely it in mind rather than it's evolution probably being designed first
>Good premise of being a martial arts dog with emotion sensing powers, could have been that and nothing more
>Evolution's design has spikes everywhere and changes a lot from it's simpler pre-evo design.
>Has unique moves like Aura Sphere and so many moves that aren't fighting type that Riolu becomes instantly useless unless using it as a Prankster set (which even then got nerfed by eliminating priority phasing)
>Gets shilled so hard by Gamefreak that people hate Riolu by proxy
Lucario was a mistake