Started playing Luigi's Mansion 2. I love the game lots despite the fact I have to rely on a guide constantly because I suck at Puzzles. It's suprisingly cinematic for a Mario game and has lot of character both in cutscene and in actual game. Granted, Mario really didn't really need to be incorporated into the story, it would be fine if it was just Luigi getting the Dark Moon pieces.
The Dark-Light mechanic I'm not to happy about. It's great for discovering secrets and going hunting for optional Boos but when it is done for mandatory puzzles, it comes across as cheap as you can't see what you can use the Dark-Light device on.
Bosses is a big range, I haven't done the last 2 Bosses but at the moment, I loved the first 2 bosses a lot, 3rd one was ok but the 4th boss was so stupid, I play Luigi's Mansion to hunt Ghost and explore the Mansions, not to play Gyro control FPS.