Pretty well done.
I don't think it's your fault that some people had such a hard time with this game. I didn't need the walkthrough at all, so I'm thinking that they're all a bunch of idiots. However, I will say that it took me a couple tries to figure out how to stop Freddy at the end, and almost lost interest entirely because shooting his hand over and over again really got old.
The animation was decent, and most of the audio was good other than the Freddy dialogue being too quiet. For future reference, you may want to make the 'interactivity areas/buttons' a little wider so that it's easier to click them (for example, the nails on the board were a pain in the ass).
Overall, this game was enjoyable. It reminds me a lot of "The Room" made years ago by some asian guy..
Great job!