A high amount of effort for porn payout is perfectly fine, but in this case that's -all- it is. A puzzle fully disconnected from the images, no story or narrative or wrapping, just a puzzle and then eventually porn. Even that might not be so bad, except the puzzle itself is just infuriating, with bounces that frequently feel wonky, ridiculous point thresholds for any ending, and even when you get a great drop your ball might just despawn if it lingers "too long".