Is the secondary arm mandatory for anything?

[Kannibale]

I'm wanting to play through the entire game, but without using the 2nd arm at all. I'm just going to remove the keybinding, to make it more difficult. Just wondering if it's specifically needed for any boss / area.

[Cryemore]

You mean the second weapon? If you do a weapon switch at any point during a combo the switch itself is an attack, thus extending your combo without a lengthy recovery.

For example a regular 4 hit combo with a one handed weapon has a large vulnerability window after the fourth hit as your character recovers from the animation. Rather than recover, switch weapons after the fourth hit to simply extend the combo.

Without a second weapon your combo is as follows:

hit>hit>hit>hit>recover/reset hit>hit>hit>hit>recover/reset

With a second weapon, say a greatsword, your combo is as follows:

hit>hit>hit>hit>switch>hit>hit>hit>switch>hit>hit>hit>hit>switch etc. etc. Each weapon switch is an attack in itself.

[Kannibale]

Originally posted by Cryemore:

You mean the second weapon? If you do a weapon switch at any point during a combo the switch itself is an attack, thus extending your combo without a lengthy recovery.

No, by 2nd arm, I mean the red arm. To parry / shield

[Lanosa]

If you refer the spell arm, it might be useful while you learn more spells and check how they can be useful.

[Why Would U Repeek That?]

There's one moment in the story where the parry is heavily implied to be the only way to progress. like hitting one(1) successful parry

[Cryemore]

Originally posted by Kannibale:

Originally posted by Cryemore:

You mean the second weapon? If you do a weapon switch at any point during a combo the switch itself is an attack, thus extending your combo without a lengthy recovery.

No, by 2nd arm, I mean the red arm. To parry / shield

I don't see the point, but to each their own I guess. The frame is your parry, shield, damage buff and an empowered dodge depending on what you set it to.

[Semont]

Originally posted by Why Would U Repeek That?:

There's one moment in the story where the parry is heavily implied to be the only way to progress. like hitting one(1) successful parry

You can also use lightning bolt if you have the stats for it as well. It goes further than rail gun.

[M19*Haunter]

Let's say, I could't beat one boss without the shield. Because I couldn't figure out how to evade his aoe one shot attacks without blocking.