Friendly fish follow me.
I tickle a catfish under its chin.
Two Koi and a rainbow parrot fish leap out of the water into my arms, then, they all mimic my movements like dolphins levitating out of the water on their tails.
My shadow follows me.
I jump along a sidewalk next to a concrete wall.
Trying over and over to touch both feet to the wall as high as possible, I think of a game with this core mechanic, set to 1970's 'classic' rock with a backdrop of muscle cars.