@kalcraig38@ashenone_vi The Sigma versions (Master Collection) are a good starting point imo, if you want a more modern one I'd recommend NG4 or maybe 2 Black
Or if you can go thru emulation there's a recomp project of Ninja Gaiden Black and Ninja Gaiden 2
@JaeGamez 2 is the hardest i feel like it have lots of complex stuff, you can cheese 1 with LW and 3 give you so many offense/defense option to basically go full aggro with both samurai/ninja style, so for me it's 2>1>3