六三四の剣 ただいま修行中 © 1986 Taito Corp.
(Musashi no Ken - Tadaima Shugyou Chuu)
Game ID: TFC- MK4900
Released on August 08, 1986 in Japan. The retail price was 4900 Yen. It was the 8th title published by Taito for the Famicom.
Based on the manga of the same name, serialized in Weekly Shonen Sunday.
There are two famous invincibility techniques. One is to start the game with the cassette half-inserted, and the other is to remove the cassette while the power is on during the game and replace it with Hydlide Special.
Game's ROM.