Finish the game on Normal difficulty or higher.

Finish the game on Easy difficulty or higher.

Finish the game using Jill.

Break into the laboratory using Jill.

Defeat Yawn using Jill.

Defeat a Crimson Head prototype1 using Jill.

Finish the game saving Rebecca and Jill using Chris.

Save Jill from confinement using Chris.

Defeat Black Tiger.

Obtain the "Last Book Vol. 2" using Chris.

Defeat Plant 42 using Chris.

Defeat mother Neptune.