I'm a bit torn on this game.
The gameplay is really fun, and I really like the amount of options you have in combat. The story was also interesting, though it admittedly isn't developed as much as the rest of the game, in spite of its intriguing premise.
The thing is... to beat Story Mode, you pretty much have to play through the game multiple times, to slowly but surely, level up your weapons and gain more lives.
While I did just that until I beat it, it got super tiring playing the same levels over and over again just to potentially get to a new stage, and then die soon after and having to do everything all over again.
I still liked the game, but I can't say I loved it.