I bought this game when it came out back in september of '99 and ever since then I have been in absolute love. Now, I am an absolute Video Game freak, particularly Nintendo, I buy any new game or console on release date, but this is possibly the best game I have ever played. I'm not sure if it's just because it was one of the first video games I ever played, or if it is just pure brilliance, but I love it. It's definitely not like any other pokemon game, this will sound bizarre, but it's more like an on the rails shooter than it is a pokemon game.
Basically you are on this little cart thing which is on some kind of track which will go through the level by itself and as you are going through, you have to take pictures of as many pokemon you can. I can't remember exactly how many levels, but I think it's about 8-10. There are different pokemon in each level and you have to get as many points as possible by getting pictures of pokemon in the correct poses. Throughout the game you get different items which you can use to get all the different pokemon in the best poses to get the most points and then theres the last level which is just Mew and you need a special item for it.
In conclusion I recommend to this game to anyone who likes pokemon, but it's fun and it's not too difficult.