I might actually know this one ... wasn't this Blue Stinger? Dreamcast launch title that tried to be like a Resident Evil? I remember playing it, barely remember much about it except never finishing it (I think).
That is a game I regret not buying. Now the price is ridiculous and I'll never get to play it. Crystar. That picture was part of the advertising for the game.
This screencap is from the QTE event to kill one of the bosses. The game's protagonist has the scythe, on the right of the image.
In this game, you have an AI-controlled companion for about 90% of the time. I would say she floats like a duck (a hint, for those who recognize the movie reference).