Similar to X-Rays, Fatal Blows are powerful moves that cause a large amount of damage, comparable to "Super Moves" found in various other fighting games. These moves consist of a short sequence of attacks that zoom in on specific strikes that deal the most damage in the sequence.
The player's health must be below 30% in order to perform a Fatal Blow. Like Krushing Blows, Fatal Blows can only be activated once per match.
If missed or blocked, Fatal Blows can be redone after time passed.