All Mishima given names end with the kanji 八 (meaning eight), pronounced as 'Ya', 'Pachi', or 'Hachi'). Heihachi Mishima (三島 平八, Mishima Heihachi his given name in Japanese translates to 'Flat Eight' in English.
Also, Heihachi has been confirmed to be in Tekken 6. Heihachi Mishima has been featured in Tekken, Tekken 2, Tekken 3, Tekken Tag Tournament, Tekken 4, Tekken 5, and Tekken 5: Dark Resurrection. Heihachi Mishima is a character in the Tekken series.
2.4.1 Ending Animation 'A Grandson's Fall'.
