Zombi U had tons of gamebreaking bugs.
At one point, you are supposed to use a guy's eyeball to open a door. So, I took his eyeball and went to the door, but it said I didn't have the eyeball. I went back to the body and took another eyeball. Went back to the door and it said I didn't have it. Then I went to his body, and was able to take a third eyeball.
It was amusing that he had an unlimited number of eyes, but also broke the game, so not so amusing because of that.







