In Tokyo Cop you become a police agent in Tokyo. You have to arrest criminals that roam the streets of the magnificent city.
You drive around in a police car and a criminal shows up. You then have to stop him by hitting his car enough times that the car is reduced to junk. But be carefull because you're car can also become scrap.
The more criminals you catch the higher will you're promotion be, but if you fail to catch them in the provided time you get demoted. The game also have a save function.