X-Blades

Purchase all 3 dark spells from the upgrade menu. Buying the previous spell unlocks the next. Make sure not to do this on your second playthrough with the “good” ending as buying any dark spells will void your progress.

The dark spells are as follows:

• Dark Ball
• Dark Rage
• Darkform

Alternatively, this will unlock once you enter the All Skills cheat located HERE.

Remember NOT to do this in your "GOOD" play through cause it will unlock all dark spells and effect your ability to earn the "GOOD" ending.