Defeat 20 enemies with hand-to-hand combat

Finish the game in Easy Mode

Defeat 50 enemies with stealth attacks

Defeat 100 enemies with headshots

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 50 enemies with the 92FS - 9mm

Defeat 50 enemies with hand-to-hand combat

Defeat three enemies with one explosion

Destroy Final Boss

Break through Ruins

Destroy Metal Head Tower

Activate Astro-Viewer in Forest

Rescue Seem at Temple