Complete all main missions and specific side tasks like Little Jacob’s drug deliveries and Brucie’s exotic exports.

Hunt down all 200 "Flying Rats" (pigeons) and complete all 50 stunt jumps.

Committing crimes in front of police immediately draws attention. If you are arrested, you lose all your current weapons; if killed, you only lose cash. Advancing the Story

To master Grand Theft Auto IV (GTA IV) , focusing on Liberty City's dense environment and its nuanced combat and social systems is key.

To achieve "Key to the City" (100% completion), you must finish more than just the main story:

Use the cover system effectively. In intense shootouts, you can also loot weapons and ammo from downed enemies to stay "strapped" without spending cash.