Mahou Shoujo Madoka Magica: Grief Syndrome Secret Boss Oktavia

Its a good thing madokas special is so broken cause i never would have beat Oktavia at lvl 1 if it wasn't... To fight Oktavia let sayaka die on any stage and her stage will appear on the stage select screen. I recommend leveling up before you fight her since even on lap 1 Oktavia has 1 hit kill moves and a lot of heath.