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"Are you guys having an ugly contest? I’ll make it easy for ya, you both win!"
Sam to Ugh-Zan IV as it fights a Sandwhale.[src]

Ugh Zan IV is the fourth incarnation of the legendary Ugh-Zan dynasty, and one of Mental's loyal servants, serving as one of his generals commanding Mental's hordes. This warrior stops at nothing while fulfilling his master's will across the galaxy. He is the final boss of Serious Sam 3: BFE.


Ugh-Zan IV face

Ugh-Zan IV appears.

Ugh-Zan IV is alleged to be the biological father to Ugh-Zan III - a paradox attributed to an accident with an experimental time-machine. He is a very large creature, with two arms (two natural arms and two augmented ones) and four large legs, which serves as a bio-mechanical quadruped and thus as a base replacing the legs. He can move quite fast (not just due to his size) and can also spin quickly on his base. He will stomp on the player at every opportunity. He's generally not considered as difficult as Ugh-Zan III.

He has very high health regeneration that increases the lower he is on health, and while regenerating, cannot be killed with any of Sam's weapons. He'll stomp you if given the opportunity, and fires wide, fast-moving projectiles that, while easily dodged, do a considerate amount of damage.

Ugh-Zan IV will be constantly surrounded by Mental's forces (Khnums, Major Bio-mechanoids and Technopolips) and will spawn in reinforcements until either he or Sam is dead. He, along with his infinite horde of alien backup, was Mental's last defense against Sam and the Time-Lock - or so Sam thought.

Battle of Alpha CentauriEdit

One of the most important and bloody conflicts, this battle occurred in the system of Alpha Centauri, where EDF forces clashed in a glorious battle against Mental's hordes lead by the infamous Ugh-Zan IV. During this battle, the EDF managed to seriously wound the enemy general, resulting in the loss of his legs. Despite this achievement, Ugh-Zan IV managed to survive the battle. Mental provided his servant with a biologically grown bio-mechanical quadruped which served as a base replacing the legs, so the general could be operational again.


  • As soon as the battle starts, go left into the building nearest the large structure in the center of the arena. This building has a jetpack (in the Fusion 2017 version, the jetpack is located near the middle of the arena), which is required to kill Ugh-Zan IV (this means that it is impossible to beat the boss if you have power-ups turned off to increase your score, because that stops the jetpack from spawning). Be sure to grab the health and armor pickups in this building; you will likely need them.
  • Avoid hanging around on the ground for too long. Ugh-Zan's stomp attack is devastating in terms of damage, while the hordes that arrive to assist him can kill you quickly if you aren't careful and evasive; most of the spawned enemies as well as Ugh-Zan himself fire fast-moving projectiles at you, which can lead to a near unavoidable wall of incoming damage.
  • Once the jetpack has been obtained, fly up and start looking for a large green/red pile of scaffolding poles. When this pile is found, fly down and walk over one of these piles to pick a pole up. It is best to be quick whilst doing this, as the hordes and Ugh-Zan's projectiles will cause a lot of damage if you're not hasty enough.
  • Now, fly around and dodge Ugh-Zan's attacks until he starts wrestling a Sandwhale. While he is fighting the Sandwhale, fly to Ugh-Zan IV's back and get close enough so that a red outline of a pole appears on his back. When this red outline is seen, throw the pole to stick it into Ugh-Zan's backside.
  • Eventually, after fighting off the Sandwhale, Ugh-Zan will be struck by lightning. This does some damage (depending on the number of poles in his back) and temporary shuts off his regenerating ability.
  • The goal is to toss five poles into Ugh-Zan's back. When five poles have been shoved into his back, he will have almost all of his health taken away by a lightning strike, along with his regenerating ability temporary being shut down. A few charged SBC Cannon shots will finish him off.
  • Three or so poles can work if the player has already softened up Ugh-Zan IV with several charged cannon shots, or if he gets struck by lightning twice in rapid succession, dropping his health to next to nothing.
  • The enemies that spawn with Ugh-Zan are not a threat and do not give points when killed. It is typically easy to dodge their projectiles while flying around with the jetpack. However, use care if you have to land while your jetpack cools off.
  • If you need cannonballs to hurt Ugh-Zan IV, there are many scattered throughout the level in the buildings. Be careful if you use the cannon against foes on the ground, a charged shot will bounce and likely miss its intended target(s) if proper timing and sufficient aim is not applied.
  • The AS-24 Devastator or rocket launcher will also work if you run out of cannonballs, but obviously will require more hits to inflict comparable damage, so five poles will likely be required. Note though, that cannonball pickups will respawn in certain places, if you get the time to look for them. Devastator shells are however in limited supply while an infinite rockets crate is present.
  • On Tourist difficulty, you can beat the boss with only 1 pole, and you don't need to wait for the lightning to strike.
  • In the VR version of Serious Sam 3: BFE, the fight is much more simpler. Unloading all of the Devastator shells on him, as well as a few cannon balls, is enough to kill him.

Related achievementsEdit

Serious Sam 3: BFEEdit

The doorman should wear a suit The doorman should wear a suit
Awake the Guardian of Time.

Serious Sam 3 VR: BFEEdit

The Doorman Should Wear a Suit The Doorman Should Wear a Suit
Awake the Guardian of Time.

Serious Sam Fusion 2017Edit

The Doorman Should Wear a Suit SSF2017 The Doorman Should Wear a Suit
Awake the Guardian of Time.


  • The rockets fired by Ugh-Zan IV use the same model as the Major Bio-mechanoid's rockets from Serious Sam HD.
  • Ugh-Zan IV being the biological father of Ugh-Zan III due to a time-travelling accident bears similarity to the lineage of the character Zaphod Beeblebrox, from Douglas Adams' The Hitchhiker's Guide to the Galaxy. Zaphod's father was Zaphod Beeblebrox II, his grandfather Zaphod Beeblebrox III, etc., also due to a time-travelling accident.


List of appearancesEdit

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