"That sly in-game dig sums up the biggest problem facing our favourite franchises. Changing too much can remove what we loved from the series. Changing too little is a recipe for malaise and boredom. When approaching a mid-generation Pokemon title, Game Freak usually tries to find balance by falling back on an age old trope: releasing a slightly improved copy of the existing two games and calling it a day. See also: Yellow, Emerald and Crystal. For the fifth generation, however, Game Freak decided to produce direct sequels to Black and White rather than a revamp. Two years have passed since the events of the previous two games, meaning that much has changed and much has stayed the same."