Good game and very true.
It's not about the lines, it's about the attitude. Be confident, be funny, keep the sexual tension high, and leave her wanting more. It's simple, but it takes a lot of work to master. This game is an example of that, not another mine for pick-up lines.
Unfortunately, Newgrounds had been bred on the hentai "dating sim", where buying a lot of presents, remembering lots of inane facts about the girl you're after, and lavishing lots of attention on them rewards you with sex. Reading the comments, they actually believe that that's how to meet women. In real life, all that gets you is a depleted bank account and many nights alone with a bottle of lotion and a Playboy magazine to keep you company.
It's also cute to see the few women on Newgrounds try to confuse the males even further with their relationship advice. No matter what, I always get a kick out of that and seeing their reactions when it untimately fails.