Clock Plugin
Nefasturris is the boss for Mission 6 of Dante's Disc. This is the only fight in the game where it is completely consistent as long as the player preforms the set up correctly. This fight has evolved it's strategy throughout the years when DMC2 speedrun scene was still at growing phase. Varying from S rank on demand with Million Stab then Round Trip for faster phase 2. Eventually Radge made consistent Majin set up for this fight which LonerHero optimized the usage of it on phase 2. In Phase 2, it's decapitated head continues to fight as Nefascapitis. This phase can be very dangerous to fight it head on head. NG+ Note: Round Trip is used against phase 1. Phase 2 can be done the same, but stronger and more consistent alternative is Quick Heart + High Time spam.
NG+ Phase 2 example. This is NTSC version, where offence heart and sword damage are bugged.
If you fail to set up Majin, then you will lose significant amount of time in Phase 2. You must get hit by the Giant Laser 3 times then tank the 4th hit with DT. The speed of this fight largely depends on how effectively you can perform Shotgun Cancel during Phase 1. This technique is significantly easier in HDC, as the PS2 version suffers from higher input lag. It’s also crucial to conserve enough DT gauge to execute the optimal cycle in Phase 2. With that in mind, there are two primary methods to approach Phase 1.
Safe Phase 1 - Ending with Whirlwind can be rough on keyboard users so they can opt with Crimson Bolide instead.
Strict Phase 1 - Very dangerous method where you switch up on the method you tank between 3rd and 4th laser.
Each cycle depends on your DT-gauge
The Angle Trick - If you hold lock-off for the first slash only, all 5 hits hit the weak spot, skipping 1 extra hit that was required to get the kill on phase 2.
Standard Cycle - This is by far the safest cycle if you did not recover well at phase 1. Although, landing doomsday can be slightly harder due to the attack recovery
NTSC Glitch Cycle - This is only possible if you are playing NA or JP release of this game. Unfortunately, it's not the best version to play.
It's good to check the Frequently Asked Questions (FAQ) if you have general questions regarding the bosses.