Metroid Prime: Federation Force 3DS

Playing through the co-op missions with friends locally is a blast, and the mission variety keeps things from getting stale. The Mech suit controls take a minute to get used to, but once you do, taking down Space Pirates feels incredibly satisfying.

The battle Mech suits feel surprisingly weighty when you stomp through a mission, and the four-player squad syncs up without much fiddling. I've put a good chunk of hours into local play, and the co-op shooter pace keeps things tense without being frustrating.

The four-player co-op actually works great online, and the blast shield on the mech suit saved me more than once. I've been having a blast blasting through missions with friends.