Clemont appears in Pokémon X and Y as a Gym Leader. Trainers who defeat Clemont will receive the Voltage Badge, along with TM24 (Thunderbolt). He first appeared outside the Prism Tower with his little sister, Bonnie, lighting it up. He is credited as the inventor of Super Training. According to the television show Gym Freaks, he is currently developing a machine that enables him to run faster, which is apparently his worst talent. It also states that he has secretly started to save money to go to the amusement park in the Unova region. He is described as a genius.
"Oh! Thank you for coming. Allow me to introduce myself..."
"Bonnie! How many times do I have to remind you... It's not my own strength that matters, nor any other Trainer's. None of us would be here if it weren't for Pokémon."
"She's right about that, at least. Let's both do our best in battle."
Being defeated
"Your passion for battle inspires me!"
After being defeated
"Oh, Bonnie... When will you learn there's no shame in losing? I'm glad whenever I get to learn something new thanks to strong challengers like this boy/girl here. Now, to the victor go the spoils! This Voltage Badge belongs to you!"
"If you have a Voltage Badge, you will be seen as a friend and equal by any Pokémon up to Lv. 70. And here. Take this TM as well..."
"Arghhh! Bonnie, you--! ... ... ... The future is now, thanks to science! Behold the machine that gives: Technical Machines! ...I just wanted to be able to say it, OK? At least once."
"Look, I'm not... It's not like I'm just trying to make myself stronger or... ... ... ... All I'm trying to do is enjoy every day to the fullest with my Pokémon, while doing the science that I love with my inventing."
(post-game) "How did the world look after defeating the Champion? I really want to understand it. The way the world looks to a real Pokémon Champion... I'm trying to invent a machine that will let me see it for myself."