From the Super Mario Wiki
Searchlight Seek is a Bonus Stage found in the game Donkey Kong 64, after the player jumps in the Bonus Barrel, the player will play the minigame to try and win a Golden Banana. In this minigame, the player will need to to shoot the required number of Klaptraps in 60 seconds using Watermelons. The player must use a flashlight to see, as the whole barrel is blacked out. After one Klaptrap is defeated, another one appears. The Klaptraps move in random pattern. Once the required number of Klaptraps are defeated, the stage is lightened up, and the player is rewarded the Golden Banana.
Names in other languages
Find and shoot all the Klaptraps! Press to fire a melon.