Jumbo Bulborb

Jumbo Bulborbs are massive enemies found in.

As their name implies, they are gigantic Bulborbs, dwarfing all other Bulborb species and rivalling the Emperor Bulblax in terms of sheer size. Outside of the size difference, they appear identical to normal Bulborbs. Jumbo Bulborbs can be found belowground and during night expeditions.

Unlike most Bulborbs, they are never found sleeping. Instead, they are usually found actively wandering their territory in search of prey, similar to Spotty Bulbears. Additionally, they sometimes can be found hiding in foliage, waiting to ambush passing Pikmin.

Behavior
Jumbo Bulborbs will either patrol an area or hide within vegetation and wait to ambush nearby prey. Like most Bulborbs, they have a defined territory, and will disengage a chase to return to it if it is far away enough. Due to their size, they are not particularly good at hiding - in fact, it is usually quite obvious, as their eye stalks and parts of their snout can be seen poking out from the foliage.

Once they notice prey, they become aggressive and will run towards nearby Pikmin, Leaders, and Oatchi, lunging at them three times with a scream. If it manages to catch any Pikmin, up to a max of 15 per attack, it will stand up and eat them; otherwise, it will trip and then try again. If there are a lot of Pikmin attacking it at once, it will shake them off and then immediately lunge 3 times.

Pikmin
Jumbo Bulborbs that are actively wandering should be treated similarly to Spotty Bulbears, although note that they have a noticeably higher amount of health compared to them.

Rushing into its back with a large squad of Pikmin on Oatchi can be a very effective opener, should one be approached undetected. It is especially easy to sneak up behind one if it is hiding, as they don't have particularly good spatial awareness. If Oatchi's Rush has been sufficiently upgraded to stun the Jumbo Bulborb, it is entirely possible, with a sufficiently large Pikmin army, to kill it before it can react.

If detected, or in a particularly bad position, locking onto it's back and attempting to circle behind it while throwing Pikmin is another good, if risky, strategy. Red, Purple, and Rock Pikmin are strongly advised due to their higher attack power. Note that, when it shakes Pikmin off, that it tends to buck them directly in front of it - perfectly positioned to be grabbed by its lunge, which it often immediately retaliates with.

If your army is on the small side, lacking the power to justify a frontal assault or to instantly kill it with an ambush, kiting its attack - that is, prompting it to lunge and dodging the attack - will offer an opportunity to counter with Oatchi's Rush.

Leaders
Punching a Jumbo Bulborb to death is highly impractical, both due to the weak power of the punch, and its high health. Should one wish to take one on without risking Pikmin lives, sending Oatchi to do the task is recommended. If he has been sufficiently upgraded, it is entirely possible for him to take out a Jumbo Bulborb on his own. Air Armor++, Tuff Stuff++, and a fully upgraded Big Chomp are highly recommended if this approach is chosen.

Trivia

 * An abnormally large Bulborb is also present as a boss in, with similar behavior of hiding in foliage and charging at Pikmin. However, it is unclear if it has the same condition as the Jumbo Bulborb.
 * Both Olimar's notes, and the creature's scientific name suggest that Jumbo Bulborbs suffer from some variant of, a condition usually stemming either from failed meiosis during the production of gametes or from an egg being fertilized by multiple sperm at once. Increased size and infertility are known side effects of this condition, both traits Jumbo Bulborbs display.