I just finished the game yesterday and it was overall a great experience, I liked the 2nd & last cases the most.
Anyway, I still have a couple interrogations :
Spoiler for Interrogations:
1. Why did Maizono target specifically Leon when there were weaker characters like let's say Fujisaki or een Fukawa (no one knew she was Genocider at that point), assuming Naegi was out of the question ?
2. Is the outside world that bad ? It seems silly to think it was as bad as Junko said but then again the interview with the Headmaster seemed to indicate something was off about it.
3. What happened to Naegi's family, the Togami group or Mazono's band for example?
4. What happened to the survivors after they left the academy ? How was their lives ? Did they group together ? ..etc
5. Is Junko really dead at the end ?
http://www.youtube.com/watch?v=WkpNO2Q-1IM
This video is ambiguous as I don't know what happens in the sequel at all. Or is it just a program she made before her death ? What are the relations between DR1 & DR2.