It wasHalo 2that introduced the concept of skulls and they’ve been a fan-favorite part of the games ever since. InHalo 2there were 15 of theseeaster eggsthat could be found during a Legendary playthrough, and they would affect parts of the game in unique and challenging ways.

RELATED:Halo: Master Chief Vs Noble 6: Who Is The Better Spartan

Halo 2 Whuppopotamus Skull

For players looking for the ultimate challenge, quirky new game mechanics, or looking to get all of the achievements, finding the skulls is an absolute must. This guide will provide some insight into where they can be located and what they do when activated.

15Whuppopotamus Skull

This strange-sounding Skull is found in the first level before the player joins Sergeant Johnson in the elevator. The player needs to wait until he says “Would it help if I said please?” before getting on. Afterward, get on the tram, face the Earth side, and spam the action button on the glass doors to reach it.

The Whuppopotamus Skull causes the enemy to be more aware and dangerous. Camouflage is less effective, any sound triggers them, and they have incredible accuracy.

Halo 2 Thunderstorm Skull

14Thunderstorm Skull

On the Cairo Station level is a large room outside of the Armory. The player then needs to parkour jump onto a light fixture to reach an open platform near the main entrance. From there is a beam near the Armory door. Hopping across will lead to a trashcan that can be bashed to reveal the skull behind. Grenade jumping and the Sputnik Skull can help.

The Thunderstorm Skull causes the majority of enemies to receive battle promotions to their highest rank, making them more dangerous. Flood Human Forms andUNSC Marinesare not affected.

Halo 2 Blind Skull

13Blind Skull

The Blind Skull is located in the Outskirtslevel. At the beginning of the level is a Grunt behind a door. After killing it the player needs to backtrack and hop onto the light on the wall to get on the roof. Grenade jumping, crouch jumping, or the Sputnik Skull help a lot here. After killing a Jackal is a dark alley with the skull at the end.

The Blind Skull causes the HUD andevery weaponexcept the Energy Sword to disappear. It’s a bit challenging, to say the least. But on the bright side, it makes taking nice, clean screenshots much easier.

Halo 2 IWHBYD Skull

12IWHBYD Skull

This Skull is very difficult to obtain, and having other Skulls like Bandana, Scarab, and Sputnik seems almost necessary when it comes to obtaining it. One issue is that the skull has a random chance of appearing. Having a detailed walkthrough is highly recommended. Generally speaking, it’s in the same location as the Blind Skull and has a challenging fight with seven waves of Elites.

RELATED:Doom Vs. Halo: Which Series Is Better?

The skull will cause the rare combat dialogue in the game to become more common. It serves no other practical function or benefit despite the difficulty in obtaining.

11Catch Skull

This Skull is located in Metropolis. After exiting the tunnel is an area with two ghosts and multiple enemies. Once everything has been eliminated walk up the middle platform underneath a large arch structure. Grenade jump to the top of the middle beam. Follow the wall to the Catch Skull on the opposite side of the structure.

The Catch Skull causes enemies and allies to throw more grenades than they would normally. They will also drop more grenades upon death.

Halo 2 Catch Skull

10Grunt Birthday Party Skull

In The Arbiter level is the first Banshee the player can use. At the bottom of the station is a glowing archway that the player can use as a guide to fly towards the middle engine of the structure. Underneath one of the overhangs is a shaded spot with six passive Grunts having a birthday party around the skull.

The Grunt Birthday Party Skull causes enemies to explode into confetti amidst the sound of cheering whenever they’re killed with a headshot. There are no bonuses or changes to difficulty, just a morbidly entertaining game feature.

Halo 2 Grunt Birthday Party Skull

9Famine Skull

After the long elevator ride on the Oracle level is a large room whereCovenantand Flood are fighting. On the opposite side of the room is a platform surrounding by glass. Destroy the glass and use crouch or grenade jumping to reach the skull hiding inside. It’s between four wriggling Flood enemies who will not attack.

The Famine Skull causes weapons to have only half the normal ammo when collected by the player. It makes the game a bit tougher and requires better ammo conservation.

Halo 2 Famine Skull

8Envy Skull

On the Delta Halo level is a large building with shields and multiple Grunt manned turrets. There is a large block with two dead grunts and energy swords behind it. The player needs to jump above using a nearby rock and multiple ledges. The skull is guarded by two camouflaged Red Elites.

The Envy Skull replaces the flashlight with a cloaking feature. The cloak lasts for five seconds and has a 10-second cooldown.

Halo 2 Envy Skull

7Assassin’s Skull

After getting off the gondola in the Regret level is a large structure with a block of stone. The player needs to jump above that stone to reach a ledge with turrets. Near the top of the structure is a ledge with the Assassin’s Skull sitting there.

RELATED:The 10 Best Arena Shooters Of All Time, Ranked

The Assassin’s Skull causes all enemies in the game to become permanently invisible. Allies are also similarly unable to see the enemies in the game and will be unable to fight back effectively.

6Mythic Skull

On the Sacred Icon level is a large piston halfway into the level. The right room is completely filled with Flood and the mysterious fog. There will be a stack of crates leading up to the top of the room. There you’ll find a hole in the wall with several dead Flood and the Mythic Skull.

This Skull causes the game to jump to the next difficulty level. Normal becomes Heroic and Legendary becomes a new difficulty called Mythic.

Halo 2 Assassins Skull

Halo 2 Mythic Skull