Is
Hologram for Arcades released by sega in 1991 intended to mean "Hologram Time Traveler". I think this was the intent of the entry since "Hologram" was an alternate name for "Hologram Time Traveler".
It may have been intended to be "
Holosseum", released by Sega in 1992, but this game has its own entry obviously, and it is fairly complete. The only other possibility it that Sega developed a prototype called "Hologram" in 1991 because there are not other games with the word Hologram in the title that are from around this time.