If I had to pin this impossible, improbable thing down, I would tell you that UFO 50 is a game about memory. Or it’s a game collection about memory, anyway, as it contains 50 of the things. It’s about the memories of what games used to be like in the 8-bit era when a lot of us were kids, but it’s also about what it was like to encounter games back then. Maybe you borrowed a bunch of carts from a friend and they picked a few at random. Maybe you found one in a store on sale and it didn’t have its instruction manual or box anymore. Maybe you did a Blockbusters haul one Friday and came home with six or seven unknowns to play through and discover.