New Game Plus is probably one of the coolest, most obvious, and underused features in video games today. There is no better way to get me to immediately replay your game than to give me every single item, weapon, magic, and point of experience that I finished the game with at the start of the my next playthrough. Yes, it makes everything Win Button easy, but it is so very satisfying returning to the boss the gave you so much trouble the first time and one-shotting him into oblivion. New Game Plus should be a required feature of every RPG and adventure game.
For the unaware, New Game Plus means starting the game over but loading your characters from when you last beat it. You generally retain most non-story items and weapons, and keep your existing level and stats. It's generally a nice reward for conquering a game, but as we'll see, can also be used for a variety of reasons.