What I would like to know is, how come David Bowie uses the term "space invader" in his 1971 song Moonage Daydream, when the game didn't come out until 1978? They don't seem to me to be words that naturally belong together. Glitch in the matrix?
https://books.google.co.uk/books?id=xB4EAAAAMBAJ&pg=PA88&dq=...
https://www.oed.com/viewdictionaryentry/Entry/185414#eid2154...