Devil May Cry Mundus Boss
Difficulty (DMD): 
Location: Mission 22 and Mission 23.
Mundus Profile
The first skirmish with Mundus sees you take to the skies and initiate an entirely new fighting system (some people compare it to Starfox). Unless you’re fighting Mundus on the higher difficulties you won’t be able to witness just how powerful he is - just two attacks are capable of killing you. This fight forces you to use the Sparda sword and has you in your ultimate form for the remaining duration of the game. It also has all your regular moves replaced with a vortex attack as well as the ability to launch fireballs instead of your old firearms. You will also have the ability to transform into an extremely powerful demon dragon, which is capable of killing Mundus in a single hit if you have a certain amount of your devil trigger gauge filled.
After Mundus is defeated in the air, the fight will continue in a new area and you and Mundus will be separated by a stream of lava. It’s a good idea to use the Grenade Launcher as your primary weapon (although on the harder difficulty it is virtually useless) and, of course, use Dante’s fireball technique when in devil trigger mode. It’s also possible to use the space debris too as platforms to make your way towards Mundus and get a few melee hits in, but this is not really recommended. You should try and fuel your devil trigger bar by constantly taunting whenever the opportunity arises as it’s possible to earn up to 3 runes per successful taunt, but be careful of the ground below you as it will be rising and may cause you to slip into the lava. Provided you keep an eye on Mundus’ actions whilst also fuelling your devil trigger you should be okay.
On the final encounter with Mundus on Mission 23, it’s clear he has been greatly weakened by his previous battles with Dante and is basically a pushover on virtually all difficulty levels. He appears as a shapeless mass, and begins to become ever more shapeless with all damage inflicted. Fortunately he only has 3 main attacks in his final form, and the only one you need to keep an eye open for is his laser eye technique, which is capable of dealing a fair amount of damage in the later difficulties. He will also occasionally scream, which won’t cause any damage but it will render him invincible for a short period of time.
The easiest way to defeat him is by working up your devil trigger gauge, followed by immediately transforming and use the Vortex attack in his face, which should drain his lifebar completely.
