It is getting better
I thought this was the best in the series so far, because it gave you a lot of room to move around and shoot things. I think the enemy designs are also getting good. I think it would have been better if the graphics were still a bit better, like showing the bullets when they hit a monster. I had no idea I had beaten the big one when it told me to run. I especially like the artwork that you get to see when you are done with a level. The sounds are pretty good too, and are what you would expect to hear of monsters being killed.