In Monster Hunter, there are evasive maneuvers that you can do using the B button. The first 6 frames (0.2 seconds) of the evade you are invincible so if you get hit by an attack that arrives and is gone within that tight time frame, you will not get hit. 0.2 seconds is incredibly tight so in principle you use evades to avoid contact with an attack, not to evade through them.
The game technically runs in frames but has a variable frame rate so if the game is at 30FPS then the first 6 frames of an evade are your invincibility frames but if you are on a new 3DS or the frame rate is 60FPS at that moment, it’ll be 12 frames. If you experience lag, your evasion will not be affected since technically it’s calculated via frames under the hood.
*I have a full tutorial video coming out very soon for this. Writing this gives me a chance to organize the information before I capture and edit the video.
There is an armor skill call Evade+ that will extend the duration that you are invincible, making it possible to move through incoming attacks without getting hit. A normal evade maneuver (circle pad + B) is 36 frames. Some weapons can do a side step, which is 18 frames, or a back hop which is 23 frames but 18 when chained together).
- None: 0.20 seconds (6 frames)
- Evade+1: 0.33 seconds (10 frames)
- Evade+2: 0.40 seconds (12 frames)
- Evade+3: 0.60 seconds (18 frames)
- Evade Down: 0.1 seconds (3 frames)
Now, you can evade through not only attacks but screams/beams as well, provided whatever it is comes and goes within the invincibility frames. Monsters like Diablos who have a very long scream, you’re going to want HQ Earplugs, but for most monsters if you have the higher Evade+ skills you can jump right before a scream and avoid being affected by it.
Evasion an an Offensive Skill
Evasion+ works really well with weapons that have a delay window after an attack. For example, switch axe has a large delay meaning you can adjust timing and evade through attacks easier than with other weapons. This allows you to be more aggressive as well, so Evasion when used properly is more of an offensive skill than a defensive one. The Dual Blades, however, has such a short evade (Demon Dash) so putting Evasion+ skills on it is not that meaningful.
A special mention goes to the Lance, which can chain 3 side steps together in a row and they count as a combo. For that reason, if you have Evade+3, the frame in which the invincibility ends for one evade and starts for the next overlap and you are invincible the entire time. This gives you a ridiculous amount of time (54 frames, almost a full second) to avoid attacks, even the largest of beams can be hopped through. But of course evading an attack alone won’t kill a monster, so it’s up to the skill of the hunter to learn how to time and chain evades together properly in a way that makes them more aggressive and increase their damage output, otherwise you’d be better off with attack bolstering skills. The only other weapon that can do combo steps is LBG (2 steps in a row). Note that even though it looks like a combo, consecutive demon dashes with DB is not a combo so the frame in-between them you will get hit.
Finally, one other note is that the Sword and Shield’s back hop into a charge attack is considered an evade, while the fade slash for the Long Sword is not.
You really need to see it to get it, so please look forward to my video in the next day or two!