I was watching Cosmo's stream and he got the sword at 6:20. I noticed his combos were faster than mine, how do you do this? He talked about perfect hits, how do these work?
During the first 2 combos (B alone, L+B without joystick), when the 2nd sword slash of your 4 slashes combo comes out, hold "down" on the joystick, and Link will do the 2 remaining slashes twice as fast. Release it to do the 2nd combo, or else Orca will punish you. Also, Down on the joystick is a bit relative to where Link is watching, if I'm not mistaken.