You have got to buy a hard drive to be able to play battlefield 4(if you have 4GB)
Only if you have a hard drive. Otherwise they will not work without a hard drive.
The Xbox Arcade is an Xbox 360 and it comes without a hard drive. What you are calling an Xbox 360 I'm assuming comes with a hard drive and if you are thinking of buying an Xbox I recommend not buying the arcade as you cannot save games without a hard drive.
yes you can play an xbox without a hard drive because the game console has its own memory but the memory is small so you will be ablwe to save your games but not be able to download or store music of the xbox without a hard drive
yes you do need an original Hard Drive in order to play this games and others.
An xbox arcade IS an xbox 360, just without the hard drive.
If you have a hard drive, Yes. Otherwise you cannot play original Xbox games. without a hard drive.
In short: no. The Xbox 360 has to install an original Xbox emulator program to run the Xbox games. It stores this emulation software on the hard drive.
Yes, but you must have a hard drive to play them. And note that you will be disconnected from Xbox Live while playing it.
no, you need the disk
No. No it won't.
take off the elites hard drive off the back of the xbox and snap it on the other xbox
No. The Only way to download demo's is to either pay for a brand new Xbox elite for 300$ and make sure it has a flash drive or you could plug a hard drive into the back of your Xbox and the file would be on your hard drive. But you could only play the demo with the hard drive in.