If you like Summer Memories, watch at least the first hour or so of this review (but if you've never seen a Tim Rogers game review before, trust me, once you've watched half that much you're gonna want to watch the whole thing) and prepare to have your mind blown:
So it turns out there's this game, Boku no Natsuyasumi, that like previous Action Button review subject Tokimeki Memorial is one of those major cultural touchstones of gaming in Japan that never made it out of its homeland and is thus all-but-unheard-of in the West outside the relatively narrow circle of now-middle-aged gamers who were deep into the import scene in the PSone days... and once you know about it, it's blindingly obvious that Summer Memories is a porn parody - or more like loving porn tribute - of it. So many details match up, down to the main character being named Boku, the Japanese juvenile masculine first-person pronoun, and the journal full of childish cartoon drawings you save your progress in at the end of each day.