Boulderous Biper

The Boulderous Biper is a species of giant biper covered in a rock casing.

=In fanon games=

In Pikmin E: The Next Adventure
In Pikmin E: The Next Adventure, the Boulderous Biper serves as the boss of the Miraculous Mine. It is huge, around the size of the Vehemoth Phosbat, and is covered with a shell made of rock. Despite its unique appearance, it behaves identically to a normal Biper.

In Pikmin: Decayed Leaf
The Boulderous Biper' is a DLC boss in Pikmin: Decayed Leaf. The creature resembles a usual Biper, but the creature is quite large; around the size of a Vehemoth Phosbat. The Biper is also covered in numerous large, brown stones that cover its entire body except its eye, legs, and head spike. The boss will fall from the sky and slam into the ground when encountered; starting the boss fight.

The Boulderous Biper acts like a normal Biper; skewering up to 25 Pikmin and eating them. Not only this, but it has another attack in its arsenal. The Boulderous Biper can charge the group by rolling in one direction; crushing any Pikmin caught by the attack. When it slams into a wall, it will be stunned for a few seconds, and three ally Bipers will fall from the sky to aid it. This is your chance to attack the Biper. The more the Boulderous Biper is damaged, the more rocks it loses. After about 75% health is lost, the Biper will lose all of its rock armor. It will then lose its charge attack and make it very vulnerable to attacks. At this point, it looks just like a very large Biper.