If you have ever seen or played one of these Megatouch coin-op video games before, usually found in bars and restaurants, then you're probably familiar with a game on it called PhotoHunt. The game presents you with two identical appearing photos, placed side by side, with one of the photos having been modified in five (5) locations using an image manipulation program such as Photoshop. The object of the game is to locate the differences between the two photos, playing against the clock, by touching the screen in the locations where the photos differ. 
As long as you find all five, then you move on to the next set of photos. Your score is calculated based on how quickly you point out the differences plus a bonus for each hint you do not use. You start with 3 hints. If you can't find a difference, you can keep playing by giving up one of your hints. It is a really fun game to play cooperatively, especially in a bar with some friends around.
As luck would have it, I found a Flash version of the game on a website in China, called Differences. The game takes a significant time to load, so give it time and your patience will be rewarded.
Caution: Since reviewing this game in 2004, the authors have changed the content of the images used in the game to some that are potentially NSFW!
Update: I found another version of the game, this one I believe is from India. In some ways it's better, and in some ways not. This one loads faster, but is smaller and you must click on the right photo only.
this is alot of fun if you know what i mean
There was a game from Megatouch which was my favorite and it was called Tai Play. It's in the catagory of Match Em' Up games and it's like Mahjong. It used to be on a website called Prizegames.com but they shut that site down. Any ideas where I could find this game. I've been on EVERY game site and have done searches on it but can't find it anywhere. Please email me (with megatouch in subject line) with any ideas.
Hi Jay,
I like the original (first) version better. It does take longer, but the photos and cartoons are so much more pleasing to the 'artistic' eye.
Thanks again for all the great games!
Hey my friend is Korean and I remember playing a Korean game at his house that was exact same as differences, except you would play against an online oponent over 5/10 images and it was a race. It was SOOOOO much fun I rmemeber spending hours playing that game but since it was completely in korean I could not play the game at home and only played at my friends house. Next time I see him I will ask him the name of it.
Also, the trick to these games where there is 2 images next to eachother is to cross your eyes and when the two images become 3, look at the middle one and once you learn to focus that image all the differences will appear as blurry blobs. I can ussually find all 5 differences in that first difference game in about 2-3 seconds. Ussually before that little "stage x" sign slides off the screen I have spotted and clicked 2-3 of the differences.
Trust me guys looking back and forth between images is useless, cross your eyes and focus the third MIDDLE image that appears... once you learn to focus that its soooo easy but still very fun. On that korean game I mentioned even I routinely got wasted... I was nowhere near the best cause other people also used the trick but it was still very fun!
I'm glad you put up a warning instead of removing the game, because I really do enjoy the game and more so this version then the alternatives.
Oh.. My... Goodness. Dennis, I read your post, it is from a while ago so you might not see it, but I tried going cross-eyed and it is such an odd experience seeing 1 image that, where the differences are the image flickers back and forth between the two. I went from "not bad" on most, to "monster" on most. I just hope that I don't hurt my eyes from doing this, because I plan on doing this alot.
Crossing your eyes probably works but I CAN'T CROSS MY EYES! I've tried. Oh well. It's a fun game, anyway!
Update