Edit: What differences does Diva F 2nd have compared to the first? (aside from new songs)
It is nearly identical gameplay-wise, but I talked about it a bit earlier in the thread here: http://www.gog.com/forum/general/games_finished_in_2015/post167
A couple other notes:
* When I said "difficulty spikes" I'm not sure I had quite the right words. Maybe it still applies. Obviously some songs are going to be harder than others in any game like this, but the variance feels much higher to me. There are more complex sequences of button-presses, and it starts throwing them at you earlier.
* The star notes have the same grading scale as all the other notes now. In Project Diva F you can spam the sticks as fast as you can and literally never fail one of these notes, but in 2nd you have to properly time them. A good change, just something to be aware of.
* There are also star notes where you have to hit both sticks at once instead of just one. These work just like the arrows where you'd hit right and circle at the same time.
2nd is really good and you'll almost certainly enjoy it if you liked F, and I don't want to take away from that. It just isn't quite as an enjoyable experience overall.
Didn't even know that. Thank you for all the info.