This has confused a lot of peeps, ye, the way I point out controls is inconsistent and unclear (I explain them in HOW TO PLAY.txt, but obviously most folks won't check that out). I'm sorting this out for the next update, as best I can
Viewing post in Rival Ultimate Steel Hand (Prototype) comments
Why not explain that in game directly? I don't think there's any reason to use Tekken notation instead of an actual binded key (or a controller button) on that particular screen. Plus, even if the player is familiar with the notation, he still needs to know which keyboard keys are being used by default.