I think X-Men is one of the most under-rated pinball machines of the modern era. The rules go deep if you're into that kind of thing, but they relate to the giant X in the middle of the playfield. Basically - start/complete more and more hero modes to make the shots in Magneto Multiball worth a ton. Hero modes are started on all the main shots in the game, including the giant Wolverine. Some of the shots are challenging, but it doesn't take much to start a hero mode. Most only require you to hit a shot twice. There are other ways to score and the game offers several ways to get into a multiball. The targets low on the playfield called "brotherhood" and "hellfire club" are 2 ways to get multiball, Wolverine is another, and Magneto is your standard "Lock balls and start multiball."

I am a bit jealous, as I haven't played an X-Men in over 6 months. Thanks for sharing :)