Suddenly... Playful cat attacks an innocent black kitty, haha!

The kitten's head movement at the end really says "? ? ? But...what the f*ck just happened?"
“Purrfect attack-retreat!”
“Funny bunny kicks.”
“Poor kitten, he does not understand what happened: it was too fast and purrious for him! He never knew what hit him!”
“OWNED! Ninja cat attack? You'll Never See it Coming!”
“Felines, such perfect killing machines.”
“Guess who, smol thing.”
“The 3 favorite games of cats. Ambush + pounce practice + sneak attack, haha.”