Shearglubs patrol a set area until they see Pikmin. When they spot them, they inflate their bodies to protrude spikes, and then roll after them.
A Shearblug can only be defeated when its spikes are retracted. Otherwise, thrown Pikmin will perish. It is best to attack it right after it brings its spikes in, since if you wait too long it will poke them out again.
Hey! Pikmin logs
“What an odd creature! It lives on both land and water, and seems puffy, but shows spikes when threats approach. I find myself curling up when scolded as well, but alas, I have no spikes to present. What can I say? I'm a pacifist.”
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