I really should have gotten around to playing Metal Slug sooner. I knew from the moment I first saw it years ago that it was something I'd want to see more of, but it never made it to the front of my mind until now, and that was a mistake.
Metal Slug is like Contra as drawn by Disney or something. It is a visual treat, but it's backed up by some solid gameplay too, both single player and co-operative. You must shoot your way through an armies worth of troops in order to defeat General Morden, and, if you're lucky, you'll be able to do so with the titular tank known as the SV-001: Metal Slug.
Run, jump, shoot. There's nothing to it. In fact, my first attempt should be a breeze...