There is no stage 4. Once you damage a twin enough it will die, and the other one dies too.
Easy enough, despite it being such a hard boss.

im the best roarkiller ever. EVER.

once they start moving, the key is to never aim at them, as you will miss 100% of the time.

there are only two things you need to know, where the head youre trying to hit is, and where it was. then you aim at the place that is neither of those two. insta win.

We downed him, first try. Basically it took us a very long time, because we were edging the strat out infight.

Phase 1:
Don't do anything besides getting walls up and down to hit one of the Bosses with the rockets, the others shoots.
Speeding it up:
Right Boss takes hits - deny as much rockets as possible, the right one shoots with Shields up to make sure, you get 100% hits. Don't gamble here, you want to skip this Phase as fast as possible. Use fast weapons, have some1 using a Combuster. He will land charged hits, whenever possible.

Phase 2:
Focus on one point, where you want to get the Boss hit. One person responsible for Walls, other two keeping Bots away. Shout in Voice when hits are incoming, so everyone is charging up and ready to land hits. Don't run around like mad, just focus on one point. Get a hing of the timing, the Boss moves.

Phase 3:
Avoid lasers and bombs. Again choose one point where you want to get the Boss hit with rockets. Spread out on the map, to avoid to much bombardement on one position. One Person for Walls, two for Bots. Here you will take the longest time. Save health pills.

Done. Biggest thing is getting a hang of the rythm. As soon as you are in the flow, keep it and you should be fine.
Good luck everyone. Nice fight!

I think the fight room before the boss was to give you a sense of team work. You guys know the room im talking about, there are two switches, blocked by undestroyable blocks, and you have to guide the rockets through by hitting the switches, but unfortunately, enemies are spawning in the corner of the room, so you have to fend those back. Did anyone notice, that when the Roarmulus twin is done "Sha da Whoop!"ing, that he falls down, probably form exhaustion?

Also, does anyone think this is a boss fight that would be easier with less people?

2 people is the perfect number I've found, any more and they'll waste your time. One person to handle switches, one to handle bots, shouldn't be hard for the one guy to deal with those weak bots.

in the first 2 stages, you have to damage them till they shield

3rd stage, you can just go for one, as they will die once one dies.

I did Roarmulus twice yesterday since I'm trying to power up my Ash Tail set to Skolver for Lockdown and hopefully find some Forge Sparks, and T2 pugs remain far and away the fastest way there is to get heat (the worse the group, the better the heat, so long as you can carry them)

Only two people need to actually know the fight for it to work - one person on switches, one person covering that person. So it's a pretty forgiving fight now, even though nothing's really changed. The new JK is tons easier now though, I was never able to solo him before without dying.