Dragon fighting jack was supposedly a character found by some fans in the original tekken. He was allegedly planned to be in the first tekken as a final boss after Heihachi. Dragon Fighting Jack apperancce is taken by a mysterious blue entity found in the original Tekken's box art. His name came from a misspelled statement regarding Marshall law, fighting Jack which read dragon fighting Jack rather than law fighting Jack. dragon fighting jack however is P.jack with comparisons between the arcade poster (which featured all the playable characters with the exception of heihachi) and the console picture (which supposedly to remove rivals from the artwork) the mysterious blue entity was actually simply the head of p.Jack (who was coloured blue in the arcade poster),who could not be completely cut out. This possilly cause players to immediately find the mysterious blue entity, but as they couldn't find the entity, dubbed him, dragon fighting Jack based on his mistranslatinn on the box. This also lead mutilple speculations whether or not dragon fighting Jack was or was meant to be a character for the console.