Boss: Cyberdemon

At the end of the Lazarus Labs you'll face the powerful Cyberdemon, a classic Doom enemy. But where the old classic Cyberdemon only had one attack (its trusty rocket launcher as arm), this one has several. Most of them are surprisingly easy to dodge. Let's go over them:

Rocket Launcher: This fires a series of rockets towards you. Simple move around to the side to dodge the rockets.

Charge: The Cyberdemon prepares this by ducking slightly and then running quickly into your direction. You can dodge it by moving to the side.

Punch: This only occurs when you get too close, so simply don't do that.

Missiles: This is a long range attack. Circles indicate where the missiles will fall, so step outside of these to avoid damage.

Energy Beam: This is a long range attack. The Cyberdemon sends a wave of fire/energy towards you. Timely jump over it to avoid damage.

Laser Beam: After taking half its health bar damage, the Cyberdemon starts using this attack. Move to one side and have the lasers lead in front of you. When the beam is charged, quickly fool the Cyberdemon by moving in the exact opposite direction, but only at the last instance.

You'll essentially need to rely on the Rocket Launcher and its lock-on feature to keep on firing bursts of three rockets to the boss. In the second phase of the fight, the Cyberdemon will often entrap you within two rock walls, limiting your movement. Use your BFG at these times to stun the creature and get some extra damage in. The Plasma Rifle also works reasonably well for stunning the Cyberdemon, especially a steady flow of Plasma to its head. During the second phase, the Cyberdemon also gets an upgraded version of the horizontal Energy Beam attack, which now comes in three waves. In order to dodge this, use the duck button to quickly lower yourself after jumping, and jump again afterwards. It takes a little time to get used to, but once you've mastered this move you can easily finish the fight.

Mission 9 - Cyberdemon