You can’t deal with the Ankou
Finish Jackal losing one heart during each Spell (Hard or 7th Hell mode)
You have no power here!
Finish the Bird of Time without using either the Slow motion nor the Barrier power (Hard or 7th Hell mode)
Stay in the air at least 1 minute standing only on Barriers and without getting hit
Same player shoot again!
Have a Game Over during the last Spell of a boss less than 2 seconds before its end