Yes, you need the Nintendo DS WiFi USB adaptor to access the internet.
no, usually if you have a router or a DS compatible access point you do not need a wifi usb stick
No you do not need wifi to go into the underground tunnles but you can use ds to ds action and play with your friends in the underground and trade and stuff.
You need a Wifi Connection or Wireless Connection just like a Nintendo Wii
sorry for the WNR2000v3
yes but you need a special cable that connects the ds into the wifi Gts
To get the jet you need to download it from a DS download station or go on WiFi. You will need 2500 points.
You just need a wifi connection
both are wifi.
You need to be in a WiFi Zone to upload coins. It wont work if you aren't in a WiFi Zone.
No, as long as your Nintendo DS can pickup a wireless connection, you can still connect to Nintendo WFC.
You should be able to. All you need is to register your home WiFi/internet connection into your DS.