Try using Camus.. keep freezing and using combos to push them away from you.. if you want damage and fast winning use Milo, keep charging your cosmo to lvl 3 and get at least at half bar when you get lvl 3 use his special (with triangle)(3 waves of scarlet needle plus antares in the end) - antares do burst damage and computer rarely evade it. If you combo him at the "Burn!" pushing him away, 2 special will be enough to pull him down once... just keep evading and charging till be able to use it again. I don't recommend you to use special because computer send them back sometimes