Bidoof

Bidoof is the second boss fought in Super Luigi Country, He is encountered after beating Levels 6-10. He is a collectible creature from the Pokémon series.

Story
Bidoof dosen't have many that many ties to the story, however, it could be implied that he ate a Mushroom which made him big, which could explain his unusual size.

After defeating Bidoof, Cranky Kong will say: ''"You did it again, Luigi! That beaver didn't stand a chance. You're well on your way to becoming a bona fide hero!" ''

Boss Fight
Instead of fighting Bidoof, you have to survive long enough for Bidoof to hit the wall of spikes near the left of the stage.

Bidoof will slowly move in from the right and keep moving, the best strategy for not being hit is to stand very close to the spike wall and wait for Bidoof to hit it. Once Bidoof is defeated, jump in the barrel and continue on.

Bidoof's Pokedex Entry
"With nerves of steel, nothing can perturb it. It is more agile and active than it appears."

Trivia

 * Bidoof's Pokedex number is 399
 * The password you get after defeating Bidoof is  'gnawty'
 * The background of the Bidoof fight is the same as The Lost World's background.