"It wouldn't surprise me if at least one marketing guy at DC tried to pitch G-Rodd the East-Coast gangster rapper, and his a deadly grudge against Solovar the West-Coast 'conscious hip hop' rapper."
Another Grodd came in, and has been added to this post:
"Using his knowledge of alien technology, Grodd has designed an amplifier for his powers which is located on his back attached to his spine and to his frontal lobe with the three nodes on his forehead. It is intuitively controlled through his four gauntlets. Because of the massive amount of brain power he must divert to the amplifier it also is attached to his chest. Those additional nodes monitor his vital signs as a fail-safe in battle to ensure Grodd doesn't over strain himself or become so preoccupied on the psychic plane that he neglects his own physical mortality."