Retro Games Sanae, often referred to as Boomer Sanae, is a popular fan-interpretation of the Touhou Project character Sanae Kochiya. While Sanae is originally from the 'Outside World' and thus more tech-savvy than the residents of Gensokyo, the meme reimagines her as a '30-year-old boomer' archetype obsessed with retro aesthetics and vintage hardware. The meme typically features her holding classic consoles or engaging in 'sip' culture, often accompanied by nostalgic commentary about 90s gaming. It highlights the humorous contrast between her youthful design and her surprisingly outdated tastes, making it a staple in the Touhou community for meta-commentary on aging gamers and the evolution of the industry.