games are retro when they come bundled with one of those cheap pirate handhelds
games are retro when a redditor says "it's aged poorly, but it was the best they got. go easy on it" (Super Mario Bros 3)
games are retro when an aging british dad says "ahh... they don't make em like they used to" (Flimbo's Quest for the Atari ST)
games are retro when a child tells you they have no idea what you're talking about (DoDonPachi DaiFukkatsu Black Label)
games are retro when they come with actual instruction manuals, feelies, and inane copy protection code wheels
games are retro when your aunt complains about those harsh beeps and boops coming from your dang nintendo (Mega Man 2)
games are retro when you could get a copied floppy from your friend with a weird cracktro
games are retro when the easiest way to get them is on archive dot org
games are retro when a smalltime american record label publishes a vinyl soundtrack of an early 90s PC-98 eroge
games are retro if the yetee is still designing shirts based off them 5 years later
games are retro when everything looks bizarrely overexposed or shiny (Amiga, Xbox 360)
games are retro when i am looking away from them (i am a literalist and have no object permanence)