A worthy ending to the series, sadly brings on all the sound/graphics issues from the previous games...
What's special in this version is the storyline, incredibly cool and deep compared to the other episodes, you'll finally get to understand what's been goin on during the whole series.
This will all take you some time because, as usual, the game is full of more or less fun detours that will somewhat take you away from the main story.
Arguably the best installment in the series (although I personally still prefer episodes 2 and 3) MMBN 6 is certainly worth your money since you'll get roughly 25/30 hours of gameplay just by following the normal storyline.
Capcom filled the game with secrets and specials just like they did in the rest of the series to give the gameplay some extra spice.
Buying or not the game surely depends on wether you're tired of the series or not, the game works fine for newcomers too, although there is the risk that they don't understand some parts of the storyline.
Even though it presents the same audio/graphics from the old episodes MMBN 6 is certainly a worthy ending to the series with it's great storyline and still action packed battles you'r sure to get lots of fun out of it!