In the world of fighting games, frame data is used by advanced players who want to level up their skills. It's the numbers - a lot of numbers - that let you know how attacks actually work under the hood, how fast they are and how long it takes to recover from them after a block, among other things.
But not all games reveal the frame date to players. One such game is Soulcalibur 6. Why?
In a recently-published and rather illuminating Q&A with Project Soul, the developers explained the decision to withhold frame data from players, saying: "As Project Soul, not releasing frame data is part of our policy."