I have been having a terrible time with Zilla on Heroic for the PS4...

I didnt have a problem with heroic and just kinda cruised thought it, (which, was a bit surprising) However, on chapter 16, you take on Zilla (again) and once you beat him down enough, he goes into a healing state where you just cut the bitch up until he dies. But, on this difficulty I can't seem to press the R2 button enough to fucking kill the prick. I pounded the damn thing for 45 minutes and had to give up, it was just too tiring. I know this is the way that you beat him (at least I'm pretty sure) because I beat this game twice already.

Not sure but planning to go through it on insane if you have some insights in that regard.

@fredchuckdave: I'd focus on just the healing for powers (or skills???) and then the best skills (or...powers? i can't remember) are aswang hunger, kenshi and kensei and inner reserve 1 to 3 and the recovery...I also found the ammo upgrades to be great..and the fucking bow with the hold R2 upgrade is amazing at head shots....just pop in and out of zooming and it triggers on their head, and can take down the big red dudes in 5 or 6 hits and most small with one.