Golden Sun TLA: That blue wizard guy with the regenerating balls. Chrono Trigger: Dark Gaia was hard if you didn't have Luminair, Flare, or a triple tech. Terranigma: Bloody Mary, the queen bitch of evil bitches. Of course, the hardest boss ever would be the FIRST BOSS of the most difficult game ever: Super Smash TV. I dare anyone to beat that game on the most difficult mode. Common, try it. I WOULD list the Wolf God-Beast from SD3, but if you have Hawk as a ninja in your party he is the most pathetic thing Square ever coughed up. Speaking of the game, I nominate the Black Rabite for the Hardest Boss award along with Super Smash TV's first boss.