I know you're on YouTube right now, so go open up a second window and search "Painkiller City on the Water secrets." You'll know the one I'm referencing when you see it.
I don't know their exact name, but the gorillas with rocket launchers at the end of the level are a little bit more than your average door with hit points, largely because they can hit you with missiles regardless of where you hide: If you duck behind a wall they'll fire into the air and rain shots down on you. Once you get some bigger weapons later on they're just a big fat target, but you will get hit when fighting them regardless.
Currently, ohuckabee has 188 views for Hard Reset across 11 videos. His channel currently has around 5 hours worth of content for Hard Reset, roughly 1.41% of the content that ohuckabee has uploaded to YouTube.