What games did grandpa like to play after class when he was a child?

Sandbags, hopscotch, hoop rolling, hide-and-seek and so on.

Grandparents' childhood games

Rolling iron rings, playing marbles, cockfighting with gyro pistols, playing slingshots and taking photos with cigarette paper.

Throw bean bags, jump rope, grab a sieve, splash water, weave flower baskets, jump rubber bands, kick shuttlecock, throw bags, jump grids, hide and seek, and catch people (such as eagles catching chickens and throwing handkerchiefs).