Dood

From KeenWiki

This tiny guy seems pleasant enough until you least expect it, then he goes all to pieces; little more than a walking timebomb, he'll wait until close enough, them explode in your face, sending deadly shrapnel everywhere. A single shot will cause detonation.

Found only on Droidiccus Prime; the Dood is a native resident and unrelated to the Droidiccus, doesn't mean he's harmless though.