Description:
The Emperor of the underworld, and the ultimate enemy of the game. He was defeated 2000 years ago by the Legendary Knight Sparda, and he not too pleased about that. He seeks to rule Earth via entry through some portal that can only be accessed at Mallet Island.

You know, I had no idea that you actually see Mundus early in the game, staring at you but saying nothing. Creepy. And his throne room is so opulent after the freakishness of the Underworld that it's shocking. It looked so...real. And clean. Very clean indeed. Enjoy the music before you go kick his ass though.

In any event, Mundus has two forms but you fight him three times: Angelform, Volcanic and Trueform Mundus. In Angelform and Volcanic, he's one really big statue-like figure with a beard, strange disjointed hands and wings like an angel. Trueform looks like a formless mass of hands and eyes.

Sounds:
Groans would be his signature war cry.

Attacks:
Like Nightmare, I will be dividing Mundus' attacks based on his forms.

Angelform:
-red lightning (light, far): Mundus shoots a row of thin red vertical lightning bars a Dante. This attack looks similar to Griffon's energy wall.

-meteors (medium, far): Mundus sends a barrage of enormous rocks straight down the screen at Dante.

-meteor shower (medium-critical, far): Mundus sends a storm of flaming meteors down from the sky at Dante.

-plasma stream (light-heavy, close-medium): using several grey balls, Mundus shots out a stream of very tiny red bolts at Dante.

-third eye laser (heavy-critical, any range): Six symbols appear in a circle around Mundus. Then he focuses energy in front of the third eye in his forehead and shoots a giant white beam either horizontally or vertically at Dante.

-shield (no damage, any range): Four black balls engage in a formation in front of Mundus, protecting him from any and all attacks.

Volcanic:
-punch (heavy, close-medium): Mundus lunges forward and throws one or two punches at Dante.

-shockwave (medium-heavy, any range): Mundus flicks his wrist and two very tall but very thin shockwaves shoot out at Dante's last position.

-drive-by (light-critical, any range): Several grey orbs fly in front of Dante, shooting several tiny bolts at him as they pass.

-black orbs (light, any range): The black orbs that protected Mundus earlier return. They shoot bolts at Dane from time to time but mostly serve to distract Dante's aim from the dark emperor.

-plasma stream (light-heavy, any range): Mundus raises a hand and sweeps the room with it, shooting a barrage of red plasma shots all the while.

-plasma shower (light-heavy, any range): Mundus arches his back and a swarm of red plasma bolts rain all over the area.

-lava dragon (light-critical, any range): A serpent-like dragon made of lava appears from the lava and shoots fireballs at Dante.

-meteor shot (medium-critical, any range): Summoning as many as four white orbs around his head Mundus spreads both his arms and sends them flying at Dante.

-meteor shower (medium-critical, any range): Mundus summons a multitude of meteors that come crashing down on Dante.

Trueform:
-optic blast (medium, medium-far): Mundus rears his giant eye back and shoots a long beam in a wide arc across the floor.

Strategy:
Brace yourself, for this is a fight against a god! Mundus fell once at the hands of Sparda, and now that his son wants a go he's not going to let things be so easy. Your weapons are predetermined for you in the first round: The sword Sparda has reactivated itself, enabled Dante to go into his ultimate DT!!!

Angelform:
The battle is taken to the skies. Dante is in perpetual flight the whole first round, so use the analog stick to steer him up and down, left and right. You can't use any guns, so don't try. Holy Water won't stand a chance against the evil god, and your attacks are changed greatly. Instead of firing a gun, Dante shoots an elemental bolt from his fists. The sword attack makes Dante spin Vortex Lv1 style, and the jump button makes you speed up. The DT button makes Dante unleash an immense dragon. This is his most powerful attack by far. It does more damage
depending on how many gauges you have lit up, so if you have all 10 lit up, then you can be guaranteed some hefty damage.

At the beginning of the first round, Munds flies about a few miles ahead of you, and you have to fly up to him to inflict damage. He has a pattern of attack he normally uses, but may mix it up from time to time. He sends a red lightning wall at you, then some meteors, then a meteor shower, then the plasma stream, and then he used his third eye laser. These attacks usually have less than a few seconds between initiation, so be wary. Your target is the large hole in his chest. It is I the only place he sustains damage in by your attacks, barring the dragon attack.

To avoid the lightning wall, maneuver Dante between the lines. They are pretty large gaps, so you don't have to worry. The meteors can be avoided by some nifty aerial tricks but since they track your last position and take up a VERY large portion of the screen, you might want to try destroying them. The elemental shots work well as does the Vortex. Vortex, however, requires good timing because there is a slight delay between Vortexes.

The meteor shower can be avoided by going to the bottom of the screen and weaving left to right. These also rack position, but since you're at the bottom you will be able to see where they are headed.

The plasma stream is also a tracking attack. Move Dante around the screen, avoiding the little bolts while firing back at the balls to destroy them.

Mundus' eye laser, however, is one that requires attention. When you see the six symbols appearing, stop firing at him an move to the extreme top left or top right of the screen. That way, you will be able to see how the beam is traveling and fly out of the way.

Once you have survived this wave, you should be close to if not right if front of the evil one. However, you might have noticed you have done no damage to the god. That is because of the four black balls in front of him. You must shoot out the balls before the shield about him drops allowing you an attack on the core. Shoot the rotating balls and then attack the core, being careful to watch for the plasma streams and the laser, two attacks that Mundus calls out frequently no matter the distance. The shield also reappears every once in a while, so shoot it out and then
resume. (Note: It is possible to snipe AND destroy all the four orbs from the maximum distance from Mundus i.e. when you have to make it through the wave. It requires a good hand and timing, not mention multitasking to both concentrate on shooting him and avoiding his attacks.)

When you have done enough damage, Mundus will wrap his wings about his body and spin high into the air, before flying away so he can attack you with ease. The spin he does is damaging to Dante if he is too close to him, so beware. (Note: You can still get a few shots off before he flies away). When he stops and spreads his wings, he will begin with the wave. Repeat the strategy to take him down.

About Dante's fire dragon attack, a few notes. First off, like regular DT you need at least 3 gauges filled to initiate the attack. It can be enhanced by using Devil Stars, but I don't know if Untouchables work (anyone?). Also, the attack will destroy anything and everything in its path: meteors, lightning, plasma balls, and Mundus' shield all at once, giving you a chance to attack the core directly. Good fun.

Volcanic:
Dante lands and looks up to the sky. Unable to keep in flight, Mundus crashes into a pit of lava, looking ever so mad. Here, the final standoff is made between the emperor and the demon hunter.

Mundus' attacks change greatly this round. He no longer shoots his giant laser, or throws giant rock at you, or even uses his lightning. However, he is more physical, and he has more flaming fireballs to throw at you. The lava also drains Dante's health if he stands in it, slower in DT mode. You can take any gun you wish (I recommend Handguns or Grenadegun), but you can only use Sparda as a sword. No others (the game says you don't stand a chance fighting Mundus with this weapon!), so get used to it. Your target is still the hole in his chest, but this time Dante
will automatically lock on to it.

The arena is a large stream of lava, with platforms of rock. Mundus is in the center, Dante is on the extreme end of the arena, on a platform. There are three of these in a circle around Mundus. He occasionally raises more platforms in front of him, floating in a circular orbit. These protect him by blocking any attack Dante uses at them. They can only be destroyed by Mundus himself.

As you're now on the ground, Dante returns to normal. All his combos, everything. But his DT is different. He can not do any of the Alastor DT moves, like flying or lightning, and most of the Ifrit moves are not in his arsenal. However, if you shoot your gun on the ground, Dante will throw a fireball Meteor-style (yes, it can be charged up too). If you jump, Dante will shoot his guns in a powered up state (looking similar to Ifrit bullets). In DT mode, Sparda strikes out at about 3 times its already ungodly length and with more power than ever. You can use the normal Alastor skills like Stinger, Round Trip and High Time. A good strategy is to use Round Trip to attack Mundus with your blade and then use fireballs as the blade slices away.

To avoid his punch, don't get too close to him and do nothing. If he can get enough of a lock on you, he will spring forward and punch. The punch can destroy the floating platforms.

His shockwaves are very quick and may be difficult t to see coming. If you see Mundus raise his hand, start running to the left or right and roll when you see the shockwave. He throws the second one without warning too, so roll to avoid that one too.

If he summons the grey orbs, the usually sit there for a while before they do the drive by shooting, so destroy them to reduce the targets Dante locks onto and also to build up his DT gauge. The drive by is avoided by simply changing heights. Jump up to the floating platforms, or if you were there go to the lower ones.

When Mundus summons the black orbs, they do nothing this time around, just sitting there to distract Dante. But destroy them, because if they are around long enough Mundus will gather them together and turn them into flaming balls for his next attack, the meteor shot. To avoid the meteor shot, you have to run either left or right and roll out of the way. You can also time it and bash them back at Mundus for damage, but like the Phantom it is a tricky move and if there are too many it may backfire. Destroy all but one of the black orbs, so that when Mundus summons
and then shoots it you can hit it back easier.

The plasma stream is easy to avoid. When Mundus begins to rake the room with his shots, run left or right to out run the bolts. Likewise, his plasma shower takes some nimble footwork to outmaneuver. However, it is rare that they actually connect if Dante is not a stationary target.

When Mundus' health begins to run low, he will use the meteor shower more often. He pounds the bottom of the lava pool, and countless flaming rocks rain from the sky. This attack is almost screen filling in its intensity, so be careful as you jump and roll out the way so you don't fall into the lava.

If Dante is taking too much damage, hang around the edge of the lava and a dragon will appear after a while. It shoots lava orbs at you in a slow arc. Easily avoided by moving in any direction, shoot the hapless creature into oblivion to release a green orb to heal Dante.

You can use the floating platforms to get into range to attack Mundus with Sparda. And combo will reach him at that range, but since he destroys the platforms in order to get to you from time to time, it is wise not to always stay there but to move in and out, shooting from the back and slashing up close.

If Mundus' health is almost gone, and you can spare it, use and Untouchable and run up to him and slash away with Sparda to take him out quickly.

Note: This battle can be very very long, so make sure you have enough stuff to weather the storm. Do not use a Vital Star on Mundus' first form! If Dante is killed try again until you get to the second round. If Dante is killed there the game will restart at the second round, not the first ^_^.

Trueform:
The crumbling god crawls across the floor towards Dante. His only attack left is a weak eyebeam, avoided by either moving back or jumping over it.

Sparda no longer DTs, so use Alastor or Ifrit and whatever gun you wish (I still recommend the Handgun or the Grenadegun). If you have a full DT gauge when the battle starts,, use Alastor's Air Raid, or Ifrit's Inferno (if you feel brave enough to go up to him) to whittle his health down. He takes more damage now than ever before, so he should fall fairly quickly. There is a cutscene, and when the game resumes you will be equipped with the Handguns (if you chose something else). Either shoot you're your gauges build or consume a Devil Star to get the minimum 3
gauges, then DT and shoot your gun! Voila! Mundus is history!

If you wait too long to kill Mundus with the gunshot, then he will swallow the character up whole, essentially killing Dante. (So I've been told! Can anyone verify this?)