Some popular cop games online are "Police Chase Crackdown," "Super Sneak" and "The Great Robbery." These games are available to play for free online at FreeOnlineGames.com.
In "Police Chase Crackdown," the player tries to arrest a specific bad guy. This police game doubles as a racing game as the players chase down the bad guy and stay on his tail during a specified period of time. Once the bad guy is in custody, the player advances to the next level. This game offers a variety of levels to play.
"Super Sneak" allows the player to play as the robber and try to avoid the police. At each level, the player must avoid the police officer and gather a certain amount of money. Some money is out in the open, but other stacks of money are inside buildings. The goal is to accumulate enough money to buy the robber's true love everything she wants.
"The Great Robbery" is a police chase and car race. After stealing the gold, the player must navigate his getaway car to the exit point without meeting up with a police car. The game offers many levels of gameplay that get progressively more difficult on each level.