The third mission of Robot Alchemic Drive starts with a news broadcast about Tokyo being under attack. You see some in-engine footage of this in a map with Tokyo Tower. When you start the level it’s actually in a completely different map that features the Tokyo Metropolitan Government Building. The map with Tokyo Tower is never used for gameplay.

Robot Alchemic Drive was build on top of a cancelled game based on Tekkōki Mikazuki. There was a demo for that game released and it features a map that includes Tokyo Tower and some of the same temple buildings visible in the R.A.D. cutscene, though the layout of the two maps don’t match.

The text visible on top of the screen in the Tekkōki Mikazuki demo says that you can press the start and select buttons together to quit back to the menu. I don’t think this is documented anywhere in the English version of Robot Alchemic Drive or its manual but this command still works in the challenge and versus modes of that game (though not the story mode).