I've been a shmup player for years, and this game is boring and derivative. The "feel" is all wrong, nothing moves with any aggression. The player's shot type is very strange and oddly small, making precision aiming a requirement. The combo system sucks because there are huge stretches of time where no enemies appear on screen; you're limited to chaining the very simple groups the trot out onto the screen mindlessly. Maybe it gets better, I couldn't tell, I can only play the game for a minute at a time before it freezes and I have to kill the runaway process from the Task Manager.
I have no idea what the sound design is like, because all I hear is static. The developer quickly blames this on codec packs and capture software, and the solution is "uninstall them". Apparently just to presence of these things is enough to cause issues. Maybe software conflicts made sense in the Win9x days, but there's absolutely no excuse for it today. The real issue is the audio subsystem he depends on.
Some users report the game boots to a blank screen. I didn't bother to read the thread on that.
The game hasn't been updated since it was published. Considering how the developer is handling feedback on the forums, I wouldn't expect any either. Syder Arcade is often on sale and is much more interesting than this, I'd recommend taking your money over there.