There is no "DSi lite" console but if you mean the DSi XL, it is fully compatible with DSi games(although you'll have to buy them twice if you want a copy on a DSi and a DSi XL)
There is no such thing as a DS lite game. There are just DS games, which are for all DS consoles.
yes you can its still the same
no, you can't download game to a Nintendo DS lite, it only works with a Nintendo DSi or a DSi XL
DSi console is different from DS lite in size. so some DSi accessory not fit ds lite. such as the DSi case, DSi battery, DSi screen film, touch pen, and so on. but some other DSi accessory can be used in DS lite console. such as r4 card, charger, usb cable, earphone, and so on.
yes except for gameboy games
The original DS can play them, as can the DS lite. The DSi, DSi XL and the 3DS do not have a GBA slot.
The Nintendo DSi has internet (thus the 'i'), a larger screen, and other features the DS does not have, as well as a camera on both the inside and the outside, whereas the DS Lite has neither.
Depends. Get the DS lite if you want a cheaper console or you want to play Gameboy Advanced games. Get the DSi if you don't need to play GameBoy Advance games because the DSi is a better DS with more features such as taking pictures and recording your voice.
Yes, you can play DS lite games on the DSi as well as the DSi XL
The DS has three kinds of consoles - the DS, the DS Lite, and the DSi. They are all more or less the same, with the DSi having a built in camera. While there are not very many games with camera functions yet, there will be in the future. The DS and the DS Lite have no real differences other than aesthetic purposes, the DSi can download games and store them in the console memory. If you already have a DS or DS Lite, there is no real need for a DSi, but if you have not purchased a DS yet, the DSi is the way to go.
A DSi uses DS games.
Yes, the Nintendo DS lite can play DSi games