Boxhead: More Rooms Newgrounds needs more games like this
The most memorable parts of any video game I have ever played happens when the player is surrounded by tons of enemies. He pulls out his weapon and starts shooting at everything around him, trying to protect his little air bubble in a sea of foes. This game delivers these moments constantly. I particurly like using the barrels and grenades. The only thing better than protecting that little air bubble is suddenly watching that sea of foes evaporate with a blanket of explosions. Amazing
The only thing left for you to do is to add a save feature