Stage breaks are stage-unique interactions that allow for extended combos.
There are currently 3 types of stage breaks:
- Wall Break
- Floor Break
- Balcony Break
Wall breaks and balcony breaks are both initiated by using moves that wallsplat opponents against breakable walls and balconies.
Floor breaks are initiated either by using a spiking move on an airborne opponent, a move that slams the opponent, or by using a move that floor breaks outright (such as Heihachi's 2+4 throw).
To see which stages have which breaks, go here.
Upon a break, damage to each move in the combo is scaled 10% down in addition to airborne combo scaling.
See also Combo for more detailed explanation in the context of combos