Basically there are no guides to get started with nds.It is a pretty simple device. There are a lot guides for games on nds and you can fin them on gamefaq.com
By getting good trophy's on the cups, you can unlock more.
Try searching ("Pokemon Diamond" + Walkthrough + Guide) on Google, or go to a game guide website. Here's a good long guide which lists practically everything to do with the game; http://www.gamefaqs.com/portable/ds/file/925601/45138
if it is online you are talking about, go to this page,http://guides.ign.com/guides/694756/index.htmlit is really good
if you have ds lite there is no point in getting a ds i because there is no difference the only difference is that it plays music and takes pics
There are plenty of games on ds, the best for a foreigner is "my japanese coach" although it has errors in stroke order....
Well I dont NO
You can find many great websites that have downloads of many emulators (including the DS) and they usually update them so you don't have to worry about getting the wrong, old model. The emulator-zone is a good place for your emulator needs.
You can by getting an r4 card for ds (by ordering)
Try checking the guide at ign.com.
No. Compare the prices. DS- 200$ Action Replay-10$. I wouldn't get it.
you need to have a kid
$200 to $300. It depends on what kind of ds your getting a normal ds lite on average $200 to $300, ds I $200 to $300 as well but it might cost $50 to $60 $ more. But I would recommend the dsI because its better than a ds lite it may cost more but the more it costs the better it is. The difference between them is a dsI has a built in camera well 2 acturely 1 for pics of your friends and 2 a camera to take pics of you. If your getting a ds whatever lite or Ithis is good advice for people who want a ds. Follow this advice and have fun on your new ds!