The Pirates that have element-specific armor- Wave Pirates, Plasma Pirates, Power Pirates, Ice Pirates...
In the Phazon Processing Center (I think that's what it's called) accessed easiest via a route blocked by Bendezium leading from Magmoor Caverns has some of those "RE" (reverse engineer) Pirates- I shot the Power Pirates with some Power Beam shots to knock them over the edge and they fell into the Phazon on the ground, but didn't decease. And yet, the regular Pirates in the same room on the main platform in the middle of the room do.
As with Fission Metroids, I think Retro Studios has carried it too far. Phazon should be able to fillet the neurons outta those jellyfish, really.
I also found recently, if I remember correctly, that even Fission Metroids that haven't split also can't be killed by the Phazon Beam. I think... I don't remember. But regular Metroids and Hunter Metroids can be killed instantly by the Phazon Beam.
Owner of the formerly ranked number one Halo PC modded server in the world, FRIGID MASS CTF WAR. Joiner-friendly mods and five-minute hotfixes = loyal clientele.
Been here since February 2004. It's May 2022 as of writing this. Wish Rich would revive this place. Guess I'm only here for the nostalgia now.