This may be a no-no to some, but we play indoor soccer with Kaji. Sometimes it's just me and Kaji, but it's infinitely more fun when my dad comes over and the three of us play together. My dad takes one goal, I take the other, and Kaji is in the middle. We use a soft plush soccer ball that's just as big as Kaji, but he loves it anyway! It's kinda like a soccer/keep away game. We try to score goals while getting past Kaji. Once he gets the ball, Kaji runs as fast as he can to get us to chase him. It's so much fun!! Drives my mom nuts though.
She keeps telling us we'll break something.