No
no
no
You would plug in a USB cable to the computer, and the other end of the cord connected to a Nintendo DSi.
No game boys do not have wi-fi. you need a cord to plug in it.
No!
Either an RF cord or and AV cord(the red, yellow, and white cord).
#
Try changing the AV cord.
No, A Nintendo DS is not compatible with a PC controller.
Depends what you mean by 'cord' - if you mean the power supply or controllers, then very definitely no. The Audio/Video hookups, however, are backwards-compatible with the Super NES, and also FORWARD-compatible with the Nintendo GameCube.
to get codes online or on your computer
get a new av cord online or just send it in to Nintendo