Halo Combat Evolved: All Skulls & Terminals Guide

Effect: Dying in co-op resets you at your last saved checkpoint. Dying solo restarts the level.

Location: At the start of the mission ‘Pillar of Autumn’, after exiting the cryo-tank, go towards the back of the room with the purple containers together. The skull is just behind them.

Location: Just when you enter onto the bridge to talk to Keys. Turn left and the glowing red booth is the Terminal can be found very easily. You can also get it AFTER talking to him.

Effect: All Covenant AI have twice the health. All Sentinels have energy shields.

Location: As soon as you crash-land on Halo, head to the waterfall in the distance. Look to its right and you should spot the skull on the ground.

Effect: Explosions have twice the damage radius.

Location: After having the warthog dropped off after defending the Forerunner structure, proceed and just before you go into the underground trench, instead around the cliff edge on the right side just up the ledge and it will be right there.

After the first major fight, a Pelician will drop a Warthog. Drive it into the tunnel and you will notice two openings here. One has a ramp that goes up, and one that goes down. Choose the one that goes down, then turn left. There is a hallway here that is glowing yellow, which has the terminal.

Effect: Players will no longer be able to pick up Covenant weaponry

Location: At the bottom floor of the Hangar, in the hallway where the Hunters ambush the Marines.

Location: The terminal in this mission is located on the main platform of the ship’s bridge. Walk up to the holographic panels and click to receive the video and the completion stat.

Effect: Weapons dropped by the AI – ally or enemy – would have half the ammunition they normally would.

Location: At the bottom floor of the Hangar, in the hallway where the Hunters ambush the Marines.

Effect: Players will have unlimited ammo and grenades, but will still have to reload.

Location: At the end of the tunnel, on the ceiling in the security console chamber. A grenade or rocket jump is usually necessary.

Location: When you fight the first pair of Hunters in this mission, the large structure has a terminal underneath one of its branching off hallways.

Effect: Player’s motion tracker will be disabled

Location: After crossing the first bridge and taking the elevator down to the ground floor, the skull will be on a raised platform in the center of this room and will be surrounded by fog. It will require a grenade jump to reach it.

Effect: When activated, one random part of the Heads-up display will disappear after every respawn. [Not cumulative]

Location: When you enter the tunnel and you come to the large room with a gorge, you will notice pipes that stick out of the gorge in the middle on both sides. The skull is on one of the pipes sticking out of the gorge’s walls.

Location: Towards the end of the level, you’ll come across a pyramid shaped structure. Head towards the structure and you’ll be able to spot a crevasse here with a yellow glow. The terminal is located in this crevasse.

Effect: Every shot the player fires depletes two rounds instead of one. For plasma-based weapons, the depletion rate is doubled.

Location: Located to the left of the Facility in a little drop behind a shade turret. When you cross the fallen tree, you’ll see a shade turret blow up and assault rifle fire coming from the structure. Instead of going inside, immediately go to the left and keep against the back wall. You’ll come to a turret with a small drop behind it. Slide down the drop carefully and the skull will be waiting for you at the bottom.

Location: Near the end of the level, head into the elevator that leads you back to the surface, activate the lift and quickly turn around. You’ll need to jump as the elevator ascends to access the other level on the elevator to land on the overhang, where the terminal can be accessed.

Effect: When activated, the only ways players are able to recharge their energy shields after taking damage are to either melee an enemy or use a medkit.

Location: In the back of one of the vents before entering the Index chamber for the first time. (Warning: Grenade jump necessary.) On the first floor at the beginning of the level, you will notice squarish openings in the ceiling that the flood use to enter the level. Before entering the round, yellow room, find the vent closest to that door and do a grenade jump into it. The skull will be waiting for you.

Effect: Auto-aim will be disabled.

Location: Behind the Index on the final platform. Instead of running onto the platform to grab the Index, go around while remaining as far from the Index as possible. The skull will be waiting on the ground right behind it.

Location: Make your way to the third floor of The Library, as you enter the circular room, look ahead and you should see a glowing yellow light. Head towards the right and jump over the base of the support structures. After a few hurdles you’ll be in the room hosting the terminal.

Effect: Hostile infantry will drop a plasma grenade with each melee.

Location: After you capture the last Banshee, fly it past the third generator room back to where you emerged from the chasm tunnel. Search the top of the underground entrance.

Location: As soon as the cutscene at the start of the level ends, head to the left and circle around till your reach the glowing terminal.

Location: Head into the room holding . As you enter this room, look to the right to spot the terminal.

Effect: Unggoy will explode in a shower of confetti with a headshot.

Location: After Foehammer’s last stand, use your Warthog to get up on one of the railings where Foehammer goes down at the end of the mission.

Fight through the Cryogenic Storage Room in The Maw and use a ladder to reach the control room. Check the walls of this control room for a glowing red terminal.