I tried to make a save file, which will hopefully work to get you the two achievements and save you a whole heap of time. Be warned though - it may unlock other achievements, I'm not sure.
This archive contains saves to get 2 achievements:
a) Kunoichi - Clear all chapters with Ayane, Momiji, and Kasumi.
I put in 3 different saves for this:
- one that has all the chapter challenges already completed by the female ninjas. I was not sure if it will unlock the achievement without requiring you to play the saves, but put it in there just in case. So try your luck.
- one that has the last checkpoint of Day 8
- one that has the last checkpoint of Day 2-Ayane
I wasn't quite sure which boss fight would be the easier of the two, so I made saves for both. You will only need to do either Day 8 or Day 2-Ayane. You won't need to do both, just pick which ever you feel you have better chance with. These saves were all made using the HARD difficulty playthrough
b) Mentor - Cleared the game on Hard difficulty
I included the save file with the last checkpoint of Day 8 on the Hard difficulty setting.
Ninja Gaiden 3 RE achievement saves 1.rar
I will work on the the other difficulty achievements and add them to this post.
Here are the remaining difficulty related save points:
c) Shinobi - Cleared the game on Hero or Normal difficulty.
d) Master Ninja - Cleared the game on Master Ninja difficulty.
e) Ultimate Ninja - Cleared the game on Ultimate Ninja difficulty.
all at the last checkpoint of the game
Ninja Gaiden 3 RE achievement saves 2.rar