You've probably seen this video of a cat going downstairs on her front paws like a ninja.
Here's her descent again in super-slomo.
The ingenious cat's name is Boots. BuzzFeed caught up with Megan Brocato, a human who lives with Boots in Colorado.
"A vet in Denver fitted her for "house slippers" (the blue prosthetics) when she was 6 months old."
"It was tough as she re-learned how to walk. But as you can see from our video, she has no problem now."
Boots, we can't wait to see what you do next.