Most original Xbox games can be played on the Xbox 360 console. Shenmue 2 is one of them games which will work, I have even played it myself.
I am not sure what you mean by backwards compatibility. If you mean by the region disks, a PAL game wont play on a other region xbox.
Here is the address to the list of games that are backwards compatible (just copy and paste it into your address bar at the top of your browser and hit "enter"): http://www.xbox.com/en-US/games/backwardcompatibilitygameslist.htm You must have a hard drive on your Xbox 360 so that you can download the backwards compatibility updates either through connecting to Xbox live, or by burning the updates on a CD and putting them in the CD drive to be burned to your hard drive. Instructions on downloading the backwards compatibility updates on your 360 are here: http://www.xbox.com/en-US/games/backwardscompatibility.htm
no
Well, lets see. Xbox 360 has backwards compatibility, internet that needs pay, smaller GB hard drive, that's about it
yes you can but only if you have a hard drive
yes you can
it is the version of the xbox360 which has a 120gb hard drive and is black instead of white
No, it does not need a flash drive.
no they are not inchangeable
Simply remove the Elite hard drive from the Xbox360 Elite and insert it into the Xbox360's.
the 360 elite comes with a 120 gb hard drive and its black but the normal 360 comes with a 60gb hard drive and its white
you need a flash drive select right codec from the video and put it on your xbox360
yes xbox games work on xbox360 if you have the hard drive but some of them dont work.