GRAND THEFT AUTO: SAN ANDREAS EASTER EGGS UNLOCKABLES
Dating missions Denise bonuses
Reach 50% progress with Denise. You will get the keys to the Hustler car in her yard.
Dating missions Helena bonus
Reach 50% progress with Helena to get a flamethrower, 9 mm pistol, chainsaw, and Molotov cocktails at her house.
Dating missions Katie bonuses
Reach 50% progress with Katie. After getting wasted, you will still have your weapons and not lose money.
Other Cities
How to get to the other cities early with no 4 star wanted level: It's simple. You just need to go to the locked and unlocked area and do something to get one star. After go to the other city and you won't have 4 stars. While you are there kill yourself and you will appear in the nearest hospital in the other city and you can roam around with any 4 stars coming up.
Truck missions bonus
Steal a truck and press R3. Reach level 8 of the trucking missions to unlock RS Haul as a property
Vigilante missions bonus
Steal any policy vehicle and press R3. Reach level 12 of the vigilante missions to get an armor limit of 150.
Banshee
Go to Las Ventura and look on The Strip.
Cheetah
Go to Las Ventura and look on The Strip.
Bullet
Complete driving school with at least all silver awards.
BMX Bike
If you want to get a BMX bike, walk around CJ's cul-de-sac and go to the yard that has tall grass in it. (There may be more than one yard with tall grass in it.) You will see a BMX bike.