Can you play new Xbox 360 games halo 3 on older Xbox?
If you are referring to an "older xbox" as the regular xbox, then the answer is no. but if you are referring it as the first models of the xbox 360, then you can play halo 3 or any new xbox 360 games on your Xbox 360.
No, you do not need Xbox LIVE to play any original Xbox games. Not all original Xbox games can be played, but Halo and Halo 2 do not need LIVE to be played on the Xbox 360. I just now tried it with my LIVE unplugged and signed in to an offline account and it let me play both of them. The previous answer was a lie, obviously.
no, halo reach is only for xbox as xbox supports the company that runs it. Halo games that are only on xbox are: halo 3 halo reach halo combat evolved annervirsary and, when it comes out, halo 4 wii is not accociated with xbox in any way. Other halo games like halo combat evolved(origional), halo wars and halo 2 are also available on the pc
Xbox live was on the original Xbox, meaning that there are several games which you can play online. Halo was the most popular game on the xbox. You can still play these games but noone will be playing them as the Xbox 360 has more and latest released games. Also, you cannot play Xbox 360 on the original Xbox, FACT!
You cannot play Halo 2 online on an Xbox 360 or Original Xbox through Xbox Live as of April 10th 2010. However, XboxConnect and Xlink allow you to play these games online, but it isn't over Xbox Live. You can also play Halo 1 online using these programs even though it was released before Xbox Live existed. You can also play Halo 2 PC online and Halo 2 Vista online as well.