A Good Start! This game combines adequate graphics, with an experimental attempt at programming, and a mellow way to pass the time.
For every game designer, we all have a first few tries at designing a game. Some are a bit too simple to be published (in a serious context), but I think this one fall into the category of just enough bang to remain entertaining.
The graphics appear quite introductory to flash. You can tell that the author has much more interest in programming, as the game has substantially more focus into the code and game design of this project. The coding of it seems to be quite simple, but effective, and a nice beginning to the code needed to make a decent, platformer, good enough for one's professional portfolio. The game design is quite simple, but still has the hit and miss gameplay principles applied. (A concept that adds to more addictive gameplay.)
Overall, a great start into the vast world of flash game design. Keep it up, and you're skill will grow!