Due to an unintentional leak on Nintendo's official "Super Smash Bros." website, which detailed how certain stickers could only be applied to certain characters, Lucario was indirectly confirmed as a playable character for "Super Smash Bros. Brawl". In "Brawl", Lucario is unlocked upon being encountered in the story mode at The Glacial Peak, or through other special means. Lucario's special moveset consists of Aura Sphere, Force Palm, ExtremeSpeed, and Double Team, each of which it can learn within the "Pokémon" games. Its "Final Smash", Aura Storm, consists of launching a powerful beam of Aura, which the player can adjust in a slow, fanning motion. Lucario's fighting style revolves around a mixture of martial arts, predominately Shaolin Kung Fu, and Aura manipulation. Aura itself is also a game mechanic unique to Lucario: its attacks become stronger as it continues to receive damage.