Parry Attack- Press Left and Triangle or Circle at the same time. Each character has one or more attacks that cause them to flash white,deflect any incoming attack, and launch a powerful counter-attack. Kayin doesn't have a triangle version, just press Circle, Left. You still take damage if you're hit by an incoming attack, but you don't suffer any other effects from it.
Juggle Break- Hammer Circle after you've been bounced up into the air from an attack. This will often let you 'bounce' out of the juggle flashing white.
Richochet- Press Triangle or Circle as your hitting the wall. When you are thrown horizontally into a wall, hitting Triangle will let you shoot back in a horizontal path while attacking. Circle lets you land safely without the attack.
Turn Around- Hold back and press Circle and Triangle. Do this while in throwing range and your character will grab their opponent and pull them while turning around. Your character winds up facing the back of their opponent.