This may have been already discussed but hey what the heck I'm feeling lazy so I'll post it anyway, might make a discussion related to the special moves even if a short one.
So do remind me: How do you get the points needed to pull those moves off? By successfully punching and/or hitting somebody with a beam/ by successfully killing somebody/ or is it a retaliation mechanism based on how much punishment you take so that you can use those moves to retaliate and smash your attackers face in and bring things to a temporary balance allowing for one of you to regain the upper hand/ or to flee or turn the tables on him and show him your teeth for a change?
I pretty sure it's not the last one but I am curious nonetheless of what the dev's would think of that balance-wise.