Dont worry, your question can be as simple as "How do I press the F key" and someone will answere it because we are not stuck up like allot of other people on forums

Hmm, as for your questions, yes it is possible to look at the codes in game demos, as long as it comes with a .ged file, which is a game editor file, just open it up and start clicking around your find it

And as for the image, make sure everything is set on 1 when you open the image file, And the moonwalk thing, theres no easy way to get rid fo it but theres tons of ways you can, uh, I havnt really ran into a moonwalk bug in a while so I forgot how to do it, but if I figure it out again I'll give you the code, The Game editor Code is in C, not sure which version, but just learn C, As for the mouse cursor, you must do this when hovering over an object, so, make a mouse enter event, then seelct change cursor,
You can compile your game by saving the project, then selecting Export after that then select the file, select Windows Executable, then click on Export, then your game will be saved as an EXE file