Kojima today revealed photos of an early version of the game’s design document. Metal Gear, it seems, was originally called “Metal Gear (Intruder).”
In the middle of the design document is a red stamp that reads “botsu” (没), or “rejected”. Kojima posted this “discarded proposal” on his Twitter account.
The story goes that a young Kojima was brought on to take over Metal Gear and tweaked the title so that it focused on escaping.
The game designer also posted hand-drawn versions of a first floor map in Metal Gear.
Metal Gear’s innovative gameplay would go on to spawn the highly successful Metal Gear Solid series.