I sadly never have had the opportunity to play Vanguard in the arcades of my youth, my first and only brush with this title came on the Atari 2600 home console. I let a school friend borrow my copy of Pitfall one afternoon and he let me borrow his Vanguard cartridge. The Hawkmen theme from the Flash Gordon movie is what stood out the most to me after playing the title.
I do not recall ever seeing this wonderful commercial for the game either…
A big thanks to AtariAge for the Vanguard box art up top and to Cronomike for uploading the trailer on YouTube.