8. 3D Beat 'Em Ups
Where 2D beat 'em ups saw something of a renaissance across the last few years, with River City Girls, Mother Russia Bleeds, Streets of Rage 4 and Scott Pilgrim vs. The World all flying the flag nicely, we haven't had a decent 3D brawler for I don't know how long.
Coming as the natural successor to 2D versions at the start of the 2000s, the idea of kicking seven bells out of random goons with an assortment of weapons and environment attacks was a given. It's what The Bouncer on PS2 was sold as, what Tekken 3 debuted as its Force mode, and what Namco's own Urban Reign absolutely nailed.
Even the Minority Report game was a fun physics-based brawler, though nobody would believe that today.
The nearest thing to a 3D brawler we've had in a decade is Gang Beasts, which is phenomenal, but the genre deserves so much more.