I'm just imagining this conversation with the sound effects guy when they came up with the Monster.
"Ok, let's start with a dinosaur stomping through the jungle. Good, good. Now let's add a roar and a wail with a long echo. Great, ok we're still missing something though... Ooh I know! Throw in an old adding machine and a hammer banging on a piece of sheet metal. Ok, I like that. Now when he charges let's use a train going into a tunnel. Perfect! That's our monster."
WHY??? Oh god can someone please tell me why he sounded so mechanical so I can finally let go and ascend.