A dark, red, or electrical flash indicates success. Some versions provide a screen tint when it is primed, as explained in this TikTok video .
Once the gauge is full, a red tint may appear on your screen, indicating that a heavy attack or specific move will trigger a Black Flash. Pro Tips for Consistent Black Flashes
In Jujutsu Infinite , you must unlock and equip the ability through progress.
It requires muscle memory. It is not entirely random, but rather a "timed" event rather than a simple button press. To make this guide more useful for you, could you tell me: