I've been buying games for my son for the past couple of years but most of the things I buy end up sitting on the shelf unplayed. He keeps going back to the old Gamecube game Metal Arms: Glitch in the System, if anyone remembers that, even though he's finished it several times over. I suppose what he would like is a good third-person shooter or adventure, which is basically what Metal Arms is. I would prefer something without too much blood and gore though, and prefer the enemy to be non-human (if you know what I mean). I considered getting Metroid Other M but have been told it's very difficult(?) Is there something with robots or aliens but with a bit of class?
Any recommendations would be most welcome.