This is the head of the Mini-Boss hideout in Brinstar. His primary attack consists of hurling horns from his stomach and back. Although, given his... girth, you'd think that by simply jumping up and landing on something, that that would probably do a fair amount of damage as well.

Kraid has somehow managed to achieve the nigh-impossible. He has thoroughly shown that he's both quite smart yet unbelievably stupid at the same time. Not only has he taken one of Samus' prize powerups, that being the high-jump, but he has also managed to piss Samus off on many occasions, thus bringing him to the brink of destruction at the hands of Samus. One might think that this is incredibly stupid, but keep in mind that he was the one that FOUND the powerup... AND some of the missiles, but also appears capable of retaining many, MANY names in memory. And probably can differentiate between different rocks quite easily. Kraid's last big 'clash' with Mother Brain basically involved him devouring the sweet, sweet insides of her blastified corpse. Since that time, he has discovered that cold + Kraid = very bad thing. Having learned that, he has developed a strong fear of the cold, and essentially refuses to go to the surface of Zebeth during the Zebethian winter. In the meantime, aside from hanging out in the bar, or more recently hanging out with Samus.