Puftoss
Puftoss is the boss of the area Gloomy Galleon in the game Donkey Kong 64. Puftoss is a giant Puftup, a type of blowfish. He is faced by Lanky Kong who is in a coconut boat. Puftoss cannot be hurt directly by Lanky, instead Lanky must use his motorboat to drive through several DK Logos which appear throughout Puftosses arena. If enough of the DK Logo are driven through then large poles will rise out of the water and electrocute Puftoss.
To stop Lanky from raising the aforementioned electric poles Puftoss has several attacks, he can shoot fireballs, create shockwaves and send smaller Puftups after Lanky.
After Puftoss is electrocuted enough times he will deflate like a balloon, flying into the air, falling back to the water and magically disappearing. It is not revealed what happened to Puftoss.