I'll try to re-summarise what one of the JP One Piece accounts figured out on Twitter (@takachanOP).
Here is their tweet/explanation in Japanese if you're interested.
There are three significant SFX to look for.
バリバリ: when you're using CoC or when two CoC users are clashing.
ビリビ: when someone felt the CoC but did not get overwhelmed.
ドクン: when the person gets overwhelmed from CoC.
The best examples in my opinion are when both SFX are used in the same image.
Here are a few examples of that:
Here is their tweet/explanation in Japanese if you're interested.
There are three significant SFX to look for.
- バリバリ "Fully charged up" or "Full of energy": when you're using CoC or when two CoC users are clashing.
- ビリビリ "Feeling of vibration": when someone felt the CoC but did not get overwhelmed.
- ドクン "Heartbeat": when the person gets overwhelmed from CoC.
バリバリ: when you're using CoC or when two CoC users are clashing.
ビリビ: when someone felt the CoC but did not get overwhelmed.
ドクン: when the person gets overwhelmed from CoC.
Here are a few examples of that: