Part 3 of Kyatto Ninden Teyandee for Famicom (NES), including translation. See the first video for details.
This video covers levels 5 and 6.
These two stages are where I made the plot changes I alluded to in the first video's descriptions. In stage 5, Ko'on was well aware of what was hidden in the forest, it was Yattaro who overheard him and assumed something different (Ko'on got pissed off when Yattaro called him silly because of it). Stage 6 involved the ninjas stealing the Super Energy instead of taking delivery of it, and failing to do so. I think the story works out better my way.
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