Code Lyoko (2003)

S3E11 Triple Trouble

Feeling left out because he lacks cool powers on Lyoko, Odd voices his frustration, prompting Jeremie to create a teleportation ability for him. While it functions properly, it inadvertently leaves behind duplicates of Odd at his original location in The Mountain Sector. After a couple of attempts, Jeremie devirtualizes Odd to troubleshoot, resulting in three clones of him. Meanwhile, in the real world, Xana unleashes a strange smoke that petrifies anyone it touches. One of Odd's duplicates is turned to stone, so the remaining two must rescue him before they destabilize and vanish.