Meteor Night
meteors are falling on the village. tap the sky to burst them.
tap the sky to send a firework up; it bursts where you tapped and stops the meteors falling on a hill village
A firework climbs from the launcher and opens where you tapped. Any meteor inside the bright ring breaks, and a breaking meteor bursts too, so the rocks beside it can go with it. The climb takes time, so tap where a rock is going, not where it is.
Concepts: prediction, leading-a-target, reaction.
An interactive you play with one thumb, on Wundr.