Xmen all day - what a fantastic game! Admittedly you do have to mod it to get the best out of it. It's waaaaay better with the custom audio package and the newton ball mod.

The rules are so good, the hero modes are great,
the battles with the villains are really well done and the magnets complement the theme perfectly. It's really not a bad shooter either - love all the combo callouts on it!

It's within the top 50 on here, so I'm not sure it can be classed as underrated, but lots of people have mentioned the Shadow (which I totally agree with) and its right next to it in the rankings - Alice Coopers Nightmare Castle. Maybe its because there are only 500 of them out there, or because they require some fixing/adjustments out of the box, but I have spent the last month, playing, immensely enjoying, and totally raving about this excellent machine. All I ever heard about it was "it's too hard" and "the shots are way too tight". The shots ARE a bit tight I have to agree there - but this pin has sooooo much soul, charm and character. The theming is incredible, the artwork on it is stupendous, the music/sound FX absolutely ROCK, and the comic book animations are something to behold. The layout is so different to anything else I've ever owned and I love it.

I actually feel like I missed out a little not owning this sooner.