The gameplay's a bit "stiff": there's quite a bit of a cooldown between uncharged shots, the jumps are low and the movement isn't particularly crazy.
But stiff isn't that bad in here. That didn't get in the way of weaving through danmaku and obliterating everything.
I had trouble with the aiming sensitivity (too high for me), methink it's a good idea for FPS games to have a setting for it. Good thing I can change my own mouse's sensitivity.
Also despite being an FPS with dodging to do, the game's easy enough to be relaxation~