deintaly omega weapon. I think it was harder than Ultimica, her fight was jus a long an frustrating fight where as Omeaga weapon was a pain in the ass an made me throw my controller a couple of times. I would get pissed off turn the game off, an then sit there get mad an i wasnt gonna let the game beat me so i turned it back on an this was a vicious cycle that lasted at least an hour.