Black Bulborb

The Black Bulborb is a rare form of Grub-dog, and as of yet has only been seen in the game Pikmin: Louie's Adventure. It is extremely ferocious, walking and attacking twice as fast as a common Red Bulborb. It is also constantly awake and roaming areas in which it is found. If one of these creatures spots its prey, it will pursue them at high speeds, not stopping until it kills them or is killed. To defeat the Black Bulborb with as little casualties as possible, amass an army of as many Purple Pikmin as possible and fill the remainder with Red Pikmin. Seek high ground, as it will allow the Black Bulborb to be attacked without it reaching the leader there for a while. However, the Black Bulborb is notorious for its ability to maneuver around obstacles to reach its prey. If any high ground cannot be found, engaging the enemy is still possible but not recommended. Rain Purple Pikmin down upon the Black Bulborb, causing it to be temporarily stunned, only stopping when it is dead. If no Purple Pikmin are available, throw Red Pikmin instead. Repeat this tactic, but do not leave the battleground for reinforcements. If left alone, the Black Bulborb will regain health at an alarming rate, and if killed, will still slowly regain life. Upon reaching half of its total life, it will revive to wreak havoc once more.

It is recommended to not engage the Black Bulborb in combat unless necessary, due to the complication of night mode's Onions being incapable of storing Pikmin or creating more. However, the Onion will still absorb the bodies, meaning that the body does not have to be abandoned. Killing a Black Bulborb will yield the Black Pearl, however, so it may be worth the risk.

Supercomputer's notes

 * "It is a well-known fact that almost all grub-dogs are nocturnal, and it is also well-known that some live underground. This bulborb is a combination of the two, both nocturnal and dwelling underground. It only emerges from holes at night, so little is known about them. Recently, a team of researchers volunteered to stay on the planet after dark to see what creature inhabits the night. They encountered this ferocious creature, and barely escaped with their lives..."

Louie's notes

 * "This creature has a natural chewiness similar to beef. As such, prepare the meat in a beef stew with a generous supply of spices and plates."

Violet's notes

 * ""Beware this creature", Louie says."

In Pikmin: Theme Park
This enemy appears in caves only and was initially going to appear above ground, but this was scrapped. Its appearance is altered to be a normal bulborb with a black back and white spots. It is also reliably larger than a normal Bulborb. The following caves show where this enemy lives: sublevel three in Bulbax Database, as a mid-boss, where it falls from the cave ceiling; sublevel five in the Shadows of the Twenty Floors, in which a few appear in crannies; and sublevel two in Dark Dash, exclusive to Cave Time Attack, appearing in dark areas as well as crannies. Two also appear in the center of Dark Dash, in which they must be defeated as they have the key to proceed.