This game is a real challenge and is rather grotesque in the fact PROSTITUTES, SHOOT NEEDLES FROM THEIR NIPPLES!!!
But let me go into detail.
This game has no ending clearly, and an upgrade system that goes on which I find interesting, but it's excessively difficult to get through the horde of enemies that all attack at once with a method of unblockable attacks. This makes it ubseenly difficult to make progress especially because the character is so slooooow.
However the fun of it is the challenge, but after a while it becomes more annoying to the fact that you can't make any progression. I think that for one, there should be more weapons, and two, that the upgrade system should be changed.
What you should try is that every kill and middle finger coin adds points to which you can spend after dying to upgrade. Make yourself stronger and your weapons too. This way you don't die over and over and make no progress.