I couldn't do the Elevator Skip that Zaarock does in his 2:11 run where you clip to the other side and kill the enemies early and then clip back again. So I'm quite surprised I beat his run by 4s! The boss fight is quite tough, since if you don't damage him enough each phase he will fly around and that can kill the run easily. I was lucky to save the run after that happened though. Also the final kick was lucky as I just barely had enough damage to kill him with a final shotgun shot!

I actually got a 2:06 when practicing the final boss (since abusing Checkpoints doesn't add on your IGT), so there's at least more to save with a better boss fight.