Keep it up
It's great to see a newcomer to the scene.
A few suggestions:
To prevent cheating add
onClipEvent(mouseDown){
gotoAndStop(fail)
}
At the moment, clicking and dragging across the walls allows the player to cheat.
Although it doesn't matter at the moment, always optimize your vector shapes. In flash, select your shape and go to Modify>>Shape>>Optimize
Don't dwell in such simple games for too long. Challenge yourself-make a game that is one step above what you think you can make and learn from there.
-Ian