I play mostly complete games and I'll give it 3 to 4 hours of game play, then I might check the gallery to see if there is anything worth sticking with it for.
I don't have much knowledge of the anime and video games etc that the parodies are based on so I can play them as long as the required knowledge isn't to great.
Sometimes they work to advance a story like trying to get into a safe and you have to search for clues to the combination but things like a random puzzle to piece together for no reason is just annoying.
Pregnant sex is not one of my kinks and pregnancy implies too much responsibility and IRL feels for me to really enjoy it in these fantasy sex games. But it's not a tag I necessarily avoid either.
Hmm. I don't actually use the gallery very much. Sometimes I check it to see what I missed. So I guess locked at first with the ability to unlock missed scenes.