OMG, suddenly...huge crash and amazing cat back flip!

Amazing Cat GIF • Suddenly running cat hits other cat! Huge crash and amazing cat Flip, haha
“??? But...what the hell did just happen?”
“Who am I, where am I? I have no idea.”
“So fast and purrious Ninja cat: when you see him, it's already too late, haha!” 
[Video: OoooShinyThings @imgur.com]