From the Super Mario Wiki
After the player jumps in the Bonus Barrel, the player will play this minigame to try and win a Golden Banana. In this minigame, the player will need to to shoot Kritters to gain the required score in 60 seconds using Watermelons. There are eight barrels that Kritter spawn from. The player can hold a maximum of five melons at a time, which can be reloaded by shooting the melon at the middle. There are two kind of Kritters: the green one is worth one point (common), and the red one is worth two points (uncommon). Once the player gained the required score, the minigame is cleared, and the Kong is rewarded with a Golden Banana.
Hit as many Kremlings as you can! Press to fire a melon.
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