Back when Revenge of Shinobi came out, the difficulty was actually a good thing, since most of the Genesis games at the time were rather short and easy arcade ports. I'd give it a B+, just because it does seem a little slow today and there are some cheap hits.
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2/17/2006: Genesis: Adventures of Batman and Robin, The, Dashin' Desperadoes, Revenge of Shinobi
2/17/2006: Genesis: Adventures of Batman and Robin, The, Dashin' Desperadoes, Revenge of Shinobi
Well I see the grade was bumped up to B- from D+ on Revenge of Shinobi, which is about right.
2/17/2006: Genesis: Adventures of Batman and Robin, The, Dashin' Desperadoes, Revenge of Shinobi
I dont see how you guys tell him the his grading is bad. He's got like 1,000,000 games on this website. Lots of time goes into this, and he probably has more experience than any of us, so I think his grades are pretty good!