Yes, you can play any 360 game on a 360 Arcade.
Yes. There is no difference.
Yes the Xbox 360 game does work on the arcade
the xbox 360 arcade can play the same games as the normal xbox 360
Yes. If you somehow manage to get the Xbox Arcade compilation disk, you will be ale to play their demos. If you have Xbox Live then you can download the demos or even the full game that the arcade has plus more!
I have an Xbox 360 Pro it can play classic Xbox game discs and it comes with a 60G hard drive and mic, the arcade doesnt do any of that.
obviously its an xbox 360
Yes it can. I personally have an Xbox 360 arcade and halo 3. There are som things on Xbox Live that you cannot do, because it doesnt come with a harddrive, but you can play the game.
Yes, you can play regular xbox 360 games on an arcade unit. The difference in between the arcade unit and the pro system is the pro system comes with a hard drive to save game data/videos/etc.
Arcade? Probably not.
yes
Yes!