The foremost of these is the fact that Pikachu just won't stay in his Pokeball! He follows you around in the game, and you have to keep him happy or you lose points and various opportunities. I also like the addition of Jesse and James (characters from the cartoon), and the additional battles they provide. If I had to pick just one of the three, this is the one I'd pick.

I like the way the Pokemon game challenges kids. I suggest also buying one of the books which shows the various routes and places. This allows kids to work at the tasks without getting frustrated.

The idea is to start at Prof. Oak's house, get your first Pokemon from him, and then journey all around the land of Pokemon, collecting various wild pokemon (which you catch by battling them until they faint), and doing battle with other trainers along the way.

In the process, kids learn to manuever through mazes of increasing complexity (which is why the manuals are a help), to gather and use items, and to develop strategies for fighting various types of Pokemon. My five year-old even started to read while using her Gameboy, from needing to know which items she had with her (in her Item List)!

All in all these are great games which can be played over and over (although only one game at a time can be saved), and which will provide your kids with hundreds of hours of fun.