GamesRadar - Demanding controls. Obtuse and unexplained mechanics. Soul-crushing difficulty. Million seller. One of these things seems like it doesn't belong with the others, but both Monster Hunter 4 Ultimate and Bloodborne have sold over a million copies since their respective launches. And both games are notorious for being as difficult and exacting (but also as rewarding) as learning a new language. So how did two semi-obscure, super-niche Japanese games attain a level of popularity typically seen by mainstream titles like Call of Duty or Assassin's Creed? The answer, as always, is complex and multi-faceted.