Here's how it works. Before going out into the street, say a small prayer asking Hashem to help you guard your eyes, so that you should not see any improper images that will filthy up and destroy your mind and heart. Then once you step outside, the game begins. You are walking through heavily guarded enemy territory where there are soldiers and snipers out to get you at every corner. You have to accomplish your mission of... (here you can insert whatever it is you need to do, go to yeshiva, go shopping, drop off the kids, etc.). Now the rules are, if you don't see the enemy, then the enemy cannot see you. But if you do look up and see the enemy, then you get shot. If it's a quick look then it is just a flesh wound, but if it is a long look with desire, you just got shot and it's game over.
Bonus level: Perfume is really poison gas that the enemy puts out to trap you. If you quickly exhale it out and cover your nose you will probably live, but if you inhale it and enjoy the smell... that's right, you just got shot!
The best part of this game is that it is just like any other game; as soon as it ends, you can just start over. Do not despair, just hit the reset button, say your prayer, restate your mission, and you are back in the game. The score is kept by how long you can go without getting shot.
I once read a story that the Baba Meir zt"l said to his attendant, that he has not seen a woman in over 40 years; he was 47 years old when he said this. I challenge anyone to try to beat that score.