I found another small bug. After you defeat Rita in the fourth chapter, the Nina character (princess) goes back to the palace and calls the princess "Nina", even though I had changed Nina's name.
This game suffers from the same problem as Bubble Tanks--you don't see half the action. Most of the time you are going around in circles shooting at things you don't see.
@Yam1418: If you are in Golden Age Peaks, you need to find another Sigil there to give you more quests. There's one near Hyperion's Gate and another near Forge of Tethys.