Luigi's Mansion 3 was this close to greatness. Its first half is brilliant, with fantastic animations, its bursting at the seams with charm, great puzzles, a fantastic setting, and fun collecting. It's Nintendo at their best.

But as the game progresses, some flaws become more and more obvious. So much so that it kind of became annoying. It's also got one of the most annoying levels in a video game I've seen in over a decade. Despite this, its still an excellent game, just not as great as it could have been.