Opening Comments:
I am a Candy Knight! My score was 106. x)
Theme: 4/5
I think this is hilarious and really plays up the stereotype of dangerous things being in Halloween candy. Fits the theme and time of year. Well done!
Design: 3.5/5
I did find the candies are a little difficult to click on, but that may be part of the point. Haha. The X-Ray portion takes up so much of the screen that you don't get much time to click them, but the little shine that runs over the machine is a nice detail. I do like that you have to remember which ones to click afterwards. It would have been hilarious to give a delayed screen as to why you're scanning the candy. Are you a concerned parent or what?
I think this would be a really fun mobile game and easier to play, since you could just tap rather than mouse click.
Audio: 3/5
Cute music and sound effects. No real complaints audio-wise, but it also wasn't the end all be all.
Gameplay: 3/5
The gameplay is simple but fun. I thought it was funny that the game kind of insults you once you lose and changes its response the higher your score is. As someone else already pointed out, the candies to begin to overlap once you play again. Some minor bugs, but the core of it's there.
Originality: 4/5
Creative idea that I think was manageable for the time given
P.S. Kudo for using 3.1!! :D