Special Rules: Players MAY leech, but be forewarned, it won't last for long. This is being allowed because soon enough the AI gets INCREDIBLY Smart and the bullets resemble a machine gun spray making it EXTREMELY difficult to advance. This is especially true on later levels where the enemies start out smarter off the bat and their shooting speed increases big time!
Entering the bottom elevator without entering all the red doors returns the gamer to an earlier point in the level and avoids the enemy speed-up. Since it's possible to do this by accident and in later levels it becomes a necessary tactic at times, we are capping the number of times a person can do this to two per level.