>>6
There's also how his name is a re-arranged "I'm name name" in Japanese. They wanted you to get confused about them.

For me DR1 is has better atmosphere, SDR2 has the most colorful cast and NDRV3 has the best twists and story (and scrum debate theme). I'd say the third game is my favorite just because, and this is kind of a spoiler for the ending, I felt a tickle in my ass for a straight week because of its ending, not even joking.