(Spoilerish) What or who was Donaka? God? Devil?
I'll start by saying I like the movie. I like Keanu and seeing him show his age was a little sad but I applaud him for the effort. Ignoring the fact that Keanu shoehorned himself into a film filled with talented martial artists, why was he so indestructible during their fight? He was considerably slower than anyone else in the film and at this point Tiger had the ability to knock men down with one punch. Tiger didn't have to slow himself down as much with his mid 60s master. If it was all just for the sake of making Donaka seem more powerful than Keanu had the ability to showcase, then that's fine. I just felt like I missed some exposition when Tiget was repeatedly punching Donaka in the face and Donaka continued to egg him on.
Outside of being indestructible, Donaka was sort of a let down in terms of a "final boss". I was glad that they didn't try to speed up his movements but it was painfully obvious to me that he was struggling. Hopefully it won't be as obvious in 47 Ronin.