Your game is proof that sometimes even the most simple concepts can be a ton of fun! I really loved the execution of this game, from the nice atmosphere, cheerful vibe, the ingenuity of balancing a grandpa, the meter/progress system - all combined with a great little soundtrack. Lovely attention to details with the leaves / wind particles, the shadow of the seasaw, and getting special attention for getting a high score. Special mention for doing this in PICO8 where you had to do absolutely everything from scratch! (btw have you tried Picotron yet?)
Took me a few tries to get sub 23secs. I'm curious if it's possible to go under 20?
