good fun game with nice graphics. keep the enemies hard to kill, you could even make them jump more or be able to shoot the wooden boxes too as is easy just to stand on a box and pick them off. Last boss is super easy because of this.
Also the end, so what happens there? Maybe another bug/cheat too is if you run out of the green ammo you can still sometimes shoot green if you hold fire and click between weapons. Sometimes it works, you get minus green ammo then but still can shoot.
I like the action in it, and it doesnt freeze up like some games when you try and shoot/jump at the same time for example. 9/10
Also great for wasting precious work time!