A small update mostly containing new music

New Music:

  -New character themes for Setsuka, Natalie, and A.L.D.A. as well as a new menu theme

System Changes:

  -Added a 10 frame "reversal" window when in hitstun, blockstun, or knocked down
  -Improved AI to use the new reversals
  -Reduced AI difficulty to be more in line with an "easy" difficulty

Bug Fixes:

  -Fixed unintended momentum with characters moving very quickly