Combine two items together.

Defeat Stage 4 G with 4+ minutes left until detonation.

Make it to the police station.

Escape from the sewers.

Use Wooden Boards to board up a window.

Shoot the grenade you fed to an enemy.

Customize a weapon.

Counterattack with a sub-weapon.

Shoot Tyrant's hat off his head.

Open a portable safe.

Complete Leon's story on "Standard" or "Hardcore" with an S rank.

Solve the Goddess Statue puzzle.