The game has the same high level of freedom as its predecessor, allowing the player to freely engage in activities such as committing crimes, catching other criminals, putting out fires, and administering first aid. The game has more open content than its predecessor, for example, the protagonist can play basketball as well as swim and even participate in sky diving. The mapping and movements are also relatively more realistic, for example, pedestrians have different automatic movements such as leaning against cars, crouching on the beach, walking hand in hand and chatting face to face. There are also more interactive buildings to enter than before, such as bars, banks, convenience stores and casinos. The game also adds more physical characteristics to the protagonist such as hunger, obesity and muscle mass, which can be changed by eating at fast food restaurants or exercising, for example, and players can meet their girlfriends since the game.

As in the previous game, players can commit crimes ranging from petty theft to mass disorder. They can use the new assassination method to rob passers-by, and they can forcibly take vehicles driven by passers-by. The new late-night robbery allows players to take advantage of the late night hours to steal from houses in specific vehicles. If you commit a crime in front of the police, you will receive more police stars, with the maximum number of stars being 6, and the number of police officers dispatched will increase, eventually bringing in the military. The new gang system allows players to recruit gang members to fight and kill rival gangs, and to seize territory from rival gangs. And drug dealers will be mixed in with the pedestrians. You can kill them and make a fortune. A burglary system has been added to allow players to make money without alerting the police, as they need to enter a house in a specific vehicle and wear a mask. Such a vehicle can be found across the street from the first girlfriend's house.

There are a large number of prostitutes operating in urban areas. The player can approach a prostitute in a car and honk the horn to signal the prostitute to get in, then drive to a secluded area to visit the prostitute, who will take some of your money while you are there.

Criminals will mainly be found in the urban areas of the game. Criminals will carry out various criminal activities in the city, such as stealing cars and sometimes stealing players' vehicles.

There are also many more means of transport than in the previous game, such as some cargo trucks, crop harvesters[8], trailers, trains, cranes, etc., as well as bicycles, which were not present at all in the previous game. As for aircraft, new jetliners and civilian airliners have been added to cope with the large map players can buy plane tickets directly in the game to travel between the three cities, and hovercraft have been added to the boats. Most cars have fuel tanks that can be shot at to quickly destroy them. Some vehicles can be modified to change their appearance, nitrogen accelerators can be added, and some lowriders can be made to dance using a hydraulic system. Due to the story, new backpack jets have been added to allow players to shoot in the air or to reach places that are inaccessible by climbing. Street racing and some challenges have been added for players to earn money.