Mecha Godzilla

you went into a facility and you entered a control room where you see outside the control room window, a giant room with some sort of machine in the middle, it’s hard to see but you can just make it out. It’s some sort of new technology that the facility was making. You look around the room and see a control panel that might hook up to the machine in the room. But before you went to it. The machine woke up and started moving towards the glass without you seeing it