Bumble B. Rumble

Bumble B. Rumble is the boss level at the end of Vine Valley in Donkey Kong Country. It is where the Kongs fight Queen B. to progress to Gorilla Glacier.

Overview
Like other boss fights in the game, Bumble B. Rumble takes place in an arena filled with bananas. If the player enters with a single Kong, a DK Barrel is instantly broken so that both Donkey Kong and Diddy Kong enter the battle.

Queen B. begins by flying counterclockwise around the area. The Kongs get injured if they come in contact with Queen B. They can attack her by picking up a Vine Barrel generated either left or right of the arena's center (in the Game Boy Color release, a barrel only generates in the center of the arena). If Queen B. is hit by a barrel, she turns red and moves in a vertical wave from top to bottom, following the Kongs. While she is red, Queen B. is invulnerable, and the Kongs must avoid her until she turns back to yellow.

After reverting to normal, Queen B. continues moving around the arena. Depending on where Queen B. was on-screen and the which direction she faced, this may reverse her circumnavigation. For every hit that she takes, Queen B. moves around the arena faster. After being hit by five barrels, Queen B. is defeated and the Kongs recover a Giant Banana.

The battle is different in the Game Boy Advance remake. Queen B. always moves around in a wavy motion, regardless of being yellow or red, although she only follows after the Kongs while yellow. While Queen B. still turns red after being hit by a Vine Barrel, she also summons some Zingers to guard her at the right side of the arena. Instead of regenerating in a specific location, a Vine Barrel falls to a random place in the arena. The Kongs must defeat the Zingers around Queen B. so she turns back to yellow, allowing the Kongs to attack her. Also, right after hitting Queen B., Donkey Kong can quickly defeat the Zingers before they spread around Queen B. by holding up a Vine Barrel under her.