Obtaining Eye-chievements

Optical Defusion Kill MONOCULUS! Reward: MONOCULUS! Difficulty: Medium How to obtain: Unlike the Horseless Headless Horsemann, MONOCULUS disappears only ninety seconds after spawning. It may be necessary that both teams stop fighting each other and concentrate on killing MONOCULUS if members from either side want this achievement. MONOCULUS floats in midair, has an innate resistance to rapid-fire weapons such as the Minigun or Flamethrower, and is scarily accurate with its projectile shots. However, it is a large target and attacks against it do not suffer from damage falloff. Thus, relatively mobile classes capable of hitting airborne targets with large amounts of firepower, such as the Scout or Soldier, make excellent choices for fighting MONOCULUS. When MONOCULUS teleports, it temporarily leaves behind a portal to the Underworld. Damaging MONOCULUS when under the influence of the Underworld buff will stun it. The last three players to deal damage to MONOCULUS when it dies will be credited with the achievement. Completing this achievement will reward you with the MONOCULUS! Hat.

Dive Into a Good Book Get to Loot Island and claim your reward! Reward: Bombinomicon Difficulty: Easy How to obtain: When MONOCULUS is defeated, he explodes in a shower of Jarate and leaves behind a red portal for a short period of time. Even if you didn't partake in killing it, you can enter the portal to reach Loot Island, an isolated section of the Underworld. Defeat any enemies, make your way up the stairs and into the room, wait for the cage to lower, and jump into the spooky book to earn this achievement. Completing this achievement will reward you with the Bombinomicon miscellaneous item.