Downdraft

• Touch a rising thing to swat it downward.
• Only what REACHES the floor is collected.
• A swat is always the same push, so height is the only variable.
• Leave something too long and your swat will stall before it lands.
• Too many out of the top and the bloom is lost.

Rising bodies, a fixed downward swat, and a floor that is the goal rather than the failure. A swat spent early always lands; a swat spent late may stall and buy nothing, so the cost of hesitating is built into the arithmetic rather than into a rule.