Hokuto no Ken 4: Shichisei Haken Den — Hokuto Shinken no Kanata e (北斗の拳4 七星覇拳伝 北斗神拳の彼方へ, Fist of the North Star 4: Legend of the Supreme Fist of the Seven Stars — Beyond the Godly Fist of the Seven Stars) is a role-playing game that's based on the manga Fist of the North Star and the fourth Fist of the North Star game for the Famicom. It features an original story that takes place after the events of the original manga. In this game, the world has fallen once again to the forces of darkness, but Kenshiro is nowhere to be found. It's up to the next generation of martial artists to take his place and bring the world back to the light.

In this run, TaoTao discovers an ability far more terrifying than Musou Tensei — moonwalking — and uses it to clip out of bounds and into other places they're not supposed to be at in order to to mess with the game's memory and fulfill the conditions necessary to make the game end as early as possible. For details on how this was done, you can read the author's notes.

There is also a video from the author that includes their commentary. Note that it is only in Japanese.