Pixel's Links
Pixel isn't great at showing emotion and is often considered a bit distant, aloof, cynical, and sarcastic. But K-9 is his best friend and everyone knows he'd do anything for his childhood friend.
K-9 is an excitable, hyper guy, and can easily show his emotion. He's kind, loud, hot-headed, and loyal. He's always by Pixel's side and would do anything for him.