What Dante can do in this fight
Shoot , doesn't need explaining
Vortex - Similar to alastor's vortex. Press the attack button to make dante spin; tap it to make him spin once, hold it down to make him spin up to 4 times. Dante is invulnerable during vortexing, but the downside is that he has a recovery time in between vortexes - he cannot keep continuously spinning.
Speed boost - Hold down the triangle/y button to give Dante a speed boost. Note that Dante can speed up left, right, up or down, but not forwards. The speed boost is still incredibly useful, though.
DT-Dragon - Press L1/Lb to send a huge-dragon! The power of the dragon is directly related to how many DT runes you have - a 3-rune dragon will be vastly weaker than a 10-rune one. Also, it's possible to get double hits with the dragon for massive damage, but I'll describe that later.
Mundus Attacks in this first phase:
Mundus has a variety of short-range and long-range moves, which I will separate into two categories.
[Long-Range]
Fireballs - Mundus summons several waves of white-yellow fireballs to come streaking towards you from the top of the screen. Evade, by moving around in a figure-of-eight pattern in the lower half of the screen. A cheaper way through this attack is to hold down triangle/y on xbox and move in a non-stop rectangle around the edges of the screen.
Dark Grey Rocks - Mundus summons dark grey rock slabs to come hurtling towards you from the centre of the screen. As they blend in very well with the outer space background, the first one can sometimes take you by surprise - use the speed boost to escape if this happens. To evade, move in a diamond-shape pattern around the edges of the screen. You can Vortex through the rocks, and get some dt runes
Lightning Bolts - Mundus summons several waves of lightning bolts to come towards you. Finding a gap between the bolts isn't hard, but you can always Vortex or use a speed boost if you misjudge the distance.
Huge Laser Beam - Mundus moves his left arm across his face to "draw" a large white circle, with DT runes appearing one after the other. A massive white laser beam then travels from right to left, or top to bottom, across the screen. It's possible to evade the beam with a well-timed move to the sides, but I recommend Vortexing through it instead.
Propeller Blades - Mundus summons slowly rotating "propeller" blades towards you, each one consisting of two small grey spheres connected by a long straight wire. These are a pain, as they go on for a long time and can be tricky to evade - the easiest way is to use the speed boost to move around the edges of the screen.
[Short-Range]
The first three attacks can be done at long-range, too, though they are mostly done at short-range.
Pink Lasers (1) – Mundus bends his head forward and crosses his arms so that that they are covering his face. Next, he throws his hands out and lifts his head up – his hands start to glow pinkish-orange, and small, thin, scattered pink lasers are fired from both hands for about 5 seconds. To evade, keep moving in a rectangular, circular, or figure-of-eight pattern and don't double back on yourself or stop.
Pink Lasers (2) – Mundus bends his head forward, and crosses his arms so that they are covering his chest. Next, he throws his arms out and lifts his head up – but this time, his hands doesn't glow. Instead, much larger pink lasers are fired from a hidden spot somewhere behind mundus’s back for about 5 seconds. Evade them the same way as pink Lasers (1).
Circle of Grey Spheres Mundus crosses his arms, then lightly rests his right hand on his left shoulder – a second later, he throws out his right arm and summons a circle of six small grey spheres. The grey spheres fires small, thin, scattered white lasers for about 20 seconds before finally disappearing. Evade this attack the same way as you would the pink lasers.
Vortex – Mundus has a Vortex move similar to your own, but he only uses it to break away from you and fly off into outer space. When he's had enough, he floats off to the right of the screen, then floats back to the centre again – you will temporarily lose control of your character during this time. Mundus then wraps his giant wings around him and Vortexes away - he will do either one or two spins depending on how far away he is from you. You can counter mundus's vortex with a Vortex of your own - stay in the middle of the screen, then begin a vortex on mundus's 1st spin if he is close to you, or on his 2nd spin if he is further away. Don't move forwards when Vortexing, but remain on the spot.
"Stacked" attacks (Mostly Hard/DMD mode):
Mundus can "stack" his moves - that is, do almost any combination of two or even three attacks simultaneously - particularly on Hard/DMD mode. Examples of such combinations include:
- Lightning Bolts + Fireballs
- Rocks + Fireballs
- Lightning Bolts + Fireballs + Pink Lasers (1)
- Rocks + Circle of Grey Spheres + Fireballs
Some of these combinations can be evaded just by holding down Triangle/Y and moving around the edges of the screen - unfortunately, the lightning bolts ones can't be evaded in that way, which means stacked attacks involving lightning bolts can get pretty tricky. You'll just have to find a way through as best as possible, using Vortexes and speed boosts to help out where necessary - or, as a last resort, send a DT dragon: you're invulnerable for as long as the animation lasts.
You don't tend to get the stacked attacks on Normal mode, though a small number of attacks can be combined - lasers, I think, can be combined with other attacks. (Sorry, it's been a long time since I fought on normal so can't really remember
Anyway
First phase of his fight:
You begin battle at the furthest point away from Mundus, so start flying down towards him (the game hardly gives you a choice in the matter anyway). Note the four dark spheres which revolve slowly around in front of Mundus , they hold his invisible defense shield in place. Mundus is invulnerable to anything except DT dragons when the defense shield is up, so try to shatter it as quickly as possible by shooting at the dark spheres , it takes about 4 shots to destroy one dark sphere.
You can shoot at Mundus while flying down towards him, but stop to evade Mundus's long range attacks whenever necessary. Once you come to a halt in front of him, then you can concentrate solely on destroying the dark spheres. Once the defense shield shatters, move non-stop in a circular, rectangular, or figure of 8 pattern (whichever suits you best) around the screen, and shoot like a maniac. I go for moving in a rectangular pattern up and down the length and breadth of Mundus's body, personally, but some people prefer to move in a figure of 8 pattern
never stop or double back on yourself when there is a laser attack in operation. The lasers track where you've just been, and if you double back on yourself, you are certain to get hit.
Only send a DT dragon when the DT gauge is full, or, as a last resort only, when Mundus is slinging a whole load of attacks at you which you don't think you can avoid.
And that's really about it - the only thing left to describe is how to get a double hit with the dragon.
Ways of getting a double hit:
1. Just before Circle of Grey Spheres - As soon as Mundus rests his right hand on his left shoulder, quickly get in front of his chest (you need to be in front of him), then DT - the ideal moment to send the dragon is when Mundus's fingers are fully stretched out on his shoulder.
2. Just before Mundus's Vortex - Send the dragon at the moment Mundus's arms are crossed at the wrists above his head or when he is moving his arms around in a circle. You should be in the centre or lower centre of the screen. After the dragon has hit, Mundus will still carry on Vortexing away - you can counter his Vortex with a Vortex of your own.
3. Laser Beam - After Mundus finishes "drawing" a large white circle, the huge laser beam will come out. From the centre or the bottom left of the screen, send the DT dragon just before the laser beam reaches you.