This overgrown Hasee appears to hunt powerful Neggs, and was found lurking in the cave behind the Clockwork Negg. It is unknown how long he had been waiting there, but he was eventually defeated with the power of the Ancient Negg Amulet found inside the Clockwork Negg.
BRRRR....
*Shakes Violently*
ROAR!
SNARL!
Grrrrr...
*The Neggbreaker circles you.*
The Neggbreaker seems to contemplate you as he walks forward...
*The Neggbreaker eyes you with a hungry gleam*