A great, fun to play game
Well done that was a damn great game, don't know if it was just me or not but I found the first level the hardest (which seemed a bit weird as it was the first one) and was the only one I didn't complete in time, maybe that should have been a bit further in, another thing which was weird was the fact that on the arty level with the face and the eye i found 6 differences, one of them wasn't a registered difference and nothing happened when I clicked on it but the fact is it definitely was still there(ask me about it on MSN before you reply to this review), a nicer idea(like you said in your authors comments(which I read after thinking this)) would have been to ahve had randomized differences, so that if you did make a mistake and had to start again, you didn't already know where they are(don't know if that's actually possible though without the differences being too obvious), also you said you were going to add sound in a future version, if you mean background music it sounds like a good idea and it would be an improvement, but if you mean sound effects for when you spot a difference it seems like a bad idea as it would be irritating.
Sorry for mentioning so much bad stuff, it probably sounded like I didn't like this game(I did I thought it was great and I'll be voting 4), I was merely just pointing out areas in which this could have been improved.
Anyway great job, keep up the good work.
Stay fizzy.