Go to the "Games Library" section on your xbox dashboard. You can also get to it from the xbox guide by going to the left, then down to games library.
No. Not games bought from a shop. Only games downloaded from Xbox Live.
Jtag is a mod for the Xbox 360 which allows you to play downloaded games. You could play xbox live with this but you will get caught and banned (xbox and gamertag ban).
Yes, an Xbox 360 Slim can play arcade games without a DVD drive if the games are downloaded and stored on the console's hard drive. Arcade games can be purchased and downloaded directly from the Xbox Live Marketplace. However, if you want to play physical copies of games, a functioning DVD drive is necessary.
Yes definitely as long as its on your xbox you can play it on or off xbox live.
You can no longer play original Xbox games on Xbox Live.
yes, you can play DLC that was downloaded on a Xbox LIVE profile and play it on a non Xbox LIVE profile
No, original Xbox controllers do not work with the Xbox 360, so any games you download from Xbox Live Marketplace will use the Xbox 360 controller.
In order to play games for the original Xbox on the Xbox 360 you will need to have the hard drive. This is because the update is downloaded onto it.
You can't.
If you want to get banned then yes.
First you have to have Xbox Live and then go to "game marketplace" and look up the game you want. Get Microsoft points if you don't already have some then wait for it to say it has downloaded. Go to game library and it should be there.
No, you would need xbox live if you wanted to interact with others while you play xbox games.