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Play through it once, you'll notice some things that should be fixed. For instance: the ability to win. It goes through an infinite loop, currently; the maze minigame leads back to the first room. And take out that awful transition between rooms, it'll make the game a little more fast-paced and interesting. Right now, it interrupts the flow of the game and breaks the player's attention; taking it out should make it flow a bit more smoothly. Also, instead of making the text a button for the Start and Replay screens, you might want to consider making a button with text on it, which would make it easier to click.
Overall, not bad for a first attempt at Flash. Work on it a bit more, test it fully, and then resubmit it. Til then, I'll have to leave you a 3/10 and a 0/5, but best of luck on the next try.