ThrowingSmile5 - X-Men Legends II is not on the list of backwards compatible games so you will not be able to play that. Please refer to the link
here. Only original XBOX games on that list will work on the XBOX 360.
Please note in the future if you have an issue, make your own thread regarding the problem so someone is able to help you as fast as possible.
Did this solve your problem?
Sorry this didn't help.
Great! Thanks for marking this as the answer.
How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site.