The Leapster 2 for kids is one of the greatest game systems you can get for them. Not only do they have fun while playing it they are learning without even knowing it. ONe of the great things about this toy is you can see everything your son/daughter is learning on it by hooking it up to your computer. I bought one for my neice and she has not stopped to put it down, its amazing to hear the stuff she is learning from it too. The battery lasts pretty good, I would say 2 hours before you would need knew batteries. Which the Leapster 2 comes with 2 AA batteries so you won't need to worry about buying them. Alsp I have recently saw you can you can do last time I went and visited them, they found out that not only can they play on the Leapster but you can also hook it up to your computer and they can play even more games. So if you are thinking about getting your child or someone elses a toy, you should really consider this one.