I'm a guy who almost never finish a game and when I do, I do it once and that's it, even, I do it on easy or normal difficulty, never bother with higher difficulties.
One game was an exception to this rule, it was The World Ends with You, a game which I completed 3 times on Ultimate Difficulty.
I played the game of NDS once and on android, the remix version, twice. It's literally the best unique game that I've ever played and would be awesome if GOG bring this back to live.