yes, but only if you go back to the store and download it again
The Nintendo DS Lite cannot download new software or updates unlike the NDSi or 3DS. It can only DS Download play, which temporarily allows you to play a downloaded DS game. You can find the DS Download Play button in the home menu of the Nintendo DS.
hacking is illegal, but if you need to play homebrew and downloaded game roms on your ds purchase an R4 or an M3 hack card you can buy on eBay
Nothing, as a 3DS game will not fit into a Ds slot. FOr downloaded games you will not see it
none
You can't play demos of Wii games, but you can play demos of DS games if you have a DS. They can be downloaded from the Nintendo channel.
take the memory card out then in
If it is a gameboy advance game, it will play on the DS. If it is a gameboy game, it wont play.
Well, you can play it again if you want or play a different game.
In order to download games to the Nintendo DS, you must go to DS Download Play and download it from another Nintendo DS. Unfortunately, as soon as you exit out of the game you downloaded, you cannot go back to it and it is not saved to your DS so that you can play anytime you like. Sorry this doen't really answer the question but it is very helpful to know this.
Whatever DS game you have buy the game for the PC. If you cant buy the game, you don't play DS games on the PC.
Well, any game that you can buy on the DSi store is not a DS game, such as "The Minis March Again." There is a DSi-only game which requires the camera to play, it is called Monster Finder and cannot be played on a regular DS (though it should work fine on a DSi).
game boy advance can be play on a ds to