it's back! a sequal as demanded by the fans. Let's see what was added vs the old game
1: there is now an enemy vs shooting notes flying across the screen, gives a focus on who too defeat
2: many new and more 'randomised' patterns vs the original that CANNOT be exploited and requires concentration (EX: pattern one of the first game, you sit against a wall at a specific point, you'll take very few hits, or sit in the middle and aim back and forth whenever you spot a rogue note, here, it's not that simple at all)
3: THERE IS A HIT BOX, SOUND THE CHORUS!
4: multiple game modes too get the experience fresh and replayable
5: There is a training mode, nice touch for those (like myself) who are not that good at bullet hells
and of course, you can still upload your own music, however there is one thing, altho it's a nit-pic... the char seemed cuter in the other game *shrugs* I dunno I just like cute characters, also wasn't it ment too be a band? I think that was brought up, be cool too have unlockable characters actually for beating a boss rush on a specific song (EX: beat a bass heavy song for the basist, a drum heavy song for the drummer, and a lyric focused song for a singer)
The only other thing is, I miss the bomb, altho I can see why it was removed, and there should be a 'focus' command (I know it's music based so you have too be careful with slow down, but it would be cool too have the option of making your song do the matrix XD probably make some awesome laughs too)
It has improved alot over the first, there is still room for even more, keep working on improving this game, there can be greater still