Block Brains (ブロックブレインズ) are enemies from Bravoman.
These pulsating brains appear on the fifteenth and twenty-fourth stages of the game, and are similar to the "Eye" and "Foot" Totems in that they just sit in place until Beraboh Man hits them; also like all seven varieties of Totems, one hit will kill them, and they are worth 500 points, but they will sometimes come ricocheting back at him. They also make a later reappearance in the Baraduke sequel, Bakutotsu Kijūtei (which is also from 1988).