Truely horrible...
I didn't get very far. The game told me to persevere, and that's when I realized you actually knew how bad the levels were. So, I stopped giving you the benefit of the doubt and decided you were just being lazy about it.
The art was also pretty horrible. By retro, you must have been referring to Pong. In seems like calling something retro is just an excuse to use boxes for art these days. Now, there are some retro-styled games that look very nice, like cave story, but this one didn't at all. It wasn't retro, it was just bad.
I would give you more points for the mechanics of the game, but you used Flixel, so there isn't much you actually had to do. I'm guessing you probably made this game in a day and decided to throw it up on Newgrounds. There's nothing wrong with that if the game is any good, but this just seems like a bad practice piece, and that's not really worth playing.