Blake J. Harris, author of the excellent Console Wars, tweeted a pic of this 1990 poster over the weekend. Remember, adults (especially retailers, which is who this seems targeted at), Nintendo is an adjective, not a noun.
https://lastchance.cc/how-sega-planned-to-crush-nintendo-24-years-ago-1575042229%3C/a%3E%3C/p%3E