To enable the Ak-47, Tec-9, Sawn-Off Shotgun, and Molotov Cocktails to spawn in the Johnson's Family Home complete all 100 tags in Los Santos.
Extra 50 Percent Health
To enable 50 percent extra health complete level 12 of the paramedic mission.
Fireproof
To enable fireproof complete level 12 of the fire fighter missions.
Pimping mission
To start the pimping mission, enter a broadway (low-rider vehicle) and press R3. Drive the prostitutes to their destinations for big cash. After the tenth "trick" prostitutes PAY you rather than you paying them.
Nitro Taxi
To enable all the taxis in the game to have nitro drop off 50 people in the taxi mission. By pressing R3 the taxi can now hop and by pressing L1 or circle the taxi uses nitro.
Medic Outfit: 100% with Katie Zhan
Pimp Outfit: 100% with Denise Robinson
Racing Outfit: 100% with Michelle
Police Outfit: 100% with Barbara
Keep weapon after getting busted: Date Barbara
Keep weapon after getting wasted: Date Katie