Bob-omb Squad (minigame)
From the Super Mario Wiki
In this minigame, the player must hit the falling Para-bombs with a black ball attached to a sling shot before it lands on the player's garden, destroying a Power Flower. The player has to aim the slingshot with the Stylus and releasing it fires the ball. As the player keeps on hitting the Para-bombs, the player will gain more points. The player's game is over when four Para-bombs land on the player's garden.
Occasionally, Lakitu may appear. If the player hits Lakitu, all of the Para-bombs will explode and the exploded Para-Bombs will be multiplied by 100 points to get the bonus for the player (So, ten Para-Bombs = 1,000 bonus points).
The parachuting Bob-ombs are destroying your flowers! Use your slingshot to knock them out of the air. Hit Lakitu to blow them all up.