Thanks a lot! The questions are there to help me confirm certain aspects about the people who enjoy these games, perhaps you're right about some of the answers being a little undefined, but that is what I have the comments section at the bottom for. That said, I do agree with most of what you've said and my aim is definitely on polishing the game-play, enemy and level designs before thinking too much about the graphical and auditory aspects of the game.
Sorry about the double post, thanks for the suggestions, have just made posts on both sites and hope to get more replies soon. I am actually hoping to finish a prototype sometime soon and I hope to get feedback and etc from yourself and everyone else who has been keen to help so far.
Thanks again!