To fight Morrigan and Nakoruru in arcade and pair match modes, unlock and buy their "Shadows" in the secret shop. Morrigan's "Shadow" is secret 63 and Nakoruru's is secret 64. They will cost 700 vs. points each. To get them to appear, you must not continue and have a GPS: 60,000 (groove points) by the end of the third match (the third team you face). To fight Morrigan, choose the Capcom groove. To fight Nakoruru, choose the SNK groove. Note: The easiest way to fight them is to go to the game options and set the difficulty to the lowest (easiest) setting, time to infinite, damage to the lowest (minimum) setting, and change gauge to max.