Great game! A couple things I noticed: I would leave out "private" until you start talking about classes - putting that on the timeline will throw errors and it is confusing since you don't explain why you are using private instead of public, protected, etc..., or even why it's there.
I got the wrong answer in the math section when I tried to use the shortcuts in the beginning (var++, var += 1, etc).
Also, on 53 it should be "no" - because you didn't capitalize the datatype name. Datatypes are class names which are always capitalized except for a couple intrinsic flash types (int, uint).
Also - when you explain the casing in the beginning (myVarName) - this is called "camel case", because it looks like a camel's humps. You might want to mention that this is all optional, but standard naming convention.
Thanks for your comment gdstudios. When I get further in this game, I'm going to encourage people to put their code in .as files and objects and to not put code on the timeline. That's why I introduced 'private' early. I know that this is only one style, and that plenty of other programmers don't do it this way. I'll also fix the datatype error. Thanks for the feedback. I'm going to add that it is called "camel case." I didn't know that! :) Edit: which section is the Data Type error? I can't find it.
Ahh yea felt that way too, I made it for a 48hour gamedev contest and after I finished the random maze code and generating a random 3D maze out of it I didnt have time to add in the rest of the horror elements :(
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I'll be adding subtitles as benny593 suggested as a first step. We aren't a real studio yet and we can't afford voice professionals for now.