I'm assuming the whitish powder on the inside is from exposure on the shelf. It brushes off dry for the most part but I would advise against using anything wet from what I've seen of other examples.
The white strip that you have to remove to activate the lights has not been touched. I also have not pressed any of the buttons.
**Just FYI...I am taking offers on the NIB sealed copy of this with the game and extras listing. Check it out if you get a chance.**
Edit - The other listing for the NIB sealed copy sold. ^ Please ignore last revision. Thank you. Good luck on this one!