You should reach 120% score multiplier in the stats page. The default number will be 100% for every character except for Wise who's initial score multiplier is 150% in the stats page. I am honestly not entirely sure whether this unlocks Belle since I've unlocked both the siblings at the same time which I've done in the Nicole run. That run had two Level 3 companions that can unlock Belle which I'll explain it here. In order for you to get 20%, you need to get 2 companions with the Resolve! bond to unlock the passive and those are the Level 3 companions. Those companions can be obtained in the Dream Altar where you need to merge 3 companions to get those Level 3 companions. You wanna have as many unique companions possible to get 2 merges.
Can I ask how to get belle? I'm having a hard time getting her
I've played Belle but after reaching about wave 7 or 9 she's taking 1 damage. How is this happened?
did you get an item that lowers hp by 1 hp every second?
@Demon-sy1uw I think I found the reason. It's the clock
How do you get belle?
You should reach 120% score multiplier in the stats page. The default number will be 100% for every character except for Wise who's initial score multiplier is 150% in the stats page. I am honestly not entirely sure whether this unlocks Belle since I've unlocked both the siblings at the same time which I've done in the Nicole run. That run had two Level 3 companions that can unlock Belle which I'll explain it here.
In order for you to get 20%, you need to get 2 companions with the Resolve! bond to unlock the passive and those are the Level 3 companions. Those companions can be obtained in the Dream Altar where you need to merge 3 companions to get those Level 3 companions. You wanna have as many unique companions possible to get 2 merges.