There's no real limitation for what counts as retro in this jam, if you think something is retro, then it counts! This could be an older system, be it the Atari or the PS2, or you could focus on a specific art style, old trend, soundtrack, genre, you decide! We intentionally used a more open term, both to not restrict participants' creativity too much, and because we have a more specific theme we'll announce once the jam begins!