Hey, thank you for the thoughtful feedback!
I am indeed still working on it, and the current state of the game doesn't count hearts as collected until you reach the exit, plus has some other things per-level to find. And there'll be a lot more levels with more specific heart gating (and fewer hearts in general), so I don't think funny sex number will be as much of an issue.
That's a pretty good point about letting the player skip early intro levels; whoops! I admit I'm a fan of the "we're all adults here" approach and letting you skip around if you like — big Super Mario World vibes — but it honestly hadn't occurred to me that a new player could inadvertently skip an entire mechanic's introduction. I'll try to be more careful about that with the full game.