He is known as a street freestyle skateboard rider, but I've never quite seen anything like this.
Killian started training at a gymnastics school when he was 10 years old.
Around 16, he began skateboarding.
Then he discovered Freestyle Skateboarding and began to merge his love for gymnastics and skating.
This Spanish skateboarder traveled to California when he was 21 and studied the tricks of the West Coast.
Now he has created his own unique style that is both technically challenging and inspiring.
You kind of have to see it to understand it. Check out this short video of Kllian in action.