Yeah San Andreas is the best of the GTA series so far for exploring. In Vice City you cant swim, you just drown once you land in water (the guy can jump out of a speeding car at 100 mph but cant swim?).
Enter these codes in game. Use the D-Pad, not the analog stick. You will see the message, Cheat Activated, if entered properly.
$250,000 + Full Health & Armor
R Trigger, Black, L Trigger , A, Left , Down, Right, Up, Left, Down, Right, Up
Add Stars to Wanted Level
B, Right, B, Right, Left, X, A Down
Aggressive Drivers
Right, Black, Up, Up, Black, B, X, Black, L Trigger, Right, Down, L Trigger
Aggressive Traffic
Black, B, R Trigger, White, Left R Trigger, L Trigger, Black, White
All Cars Have Nitrous
Left, Y, R Trigger, L Trigger, Up, X, Y, Down, B, White, L Trigger, L Trigger
All Cars have Tank Properties.
L Trigger, White, White, Up, Down, Down, Up, R Trigger, Black, Black
All Traffic are Junk Cars
White, Right, L Trigger, Up, A, L Trigger, White, Black, R Trigger, L Trigger, L Trigger, L Trigger
All Vehicles are Invisible (Not Motorcycles)
Y, L Trigger, Y, Black, X, L Trigger, L Trigger
Always Midnight
X, L Trigger, R Trigger, Right, A, Up, L Trigger, Left, Left
Adrenaline Mode
A, A, X, R Trigger, L Trigger, A, Down, Left, A
Attracts Prostitutes (Pimp Mode)
X, Right, X, X, White, A, Y, A, Y
Better Suspension
X, X, Black, Left, Up, X, Black, A, A, A
Bikini Beach Babe Mode
Up, Up, Down, Down, X, B, L Trigger, R Trigger, Y, Down
Black Traffic
B, White, Up, R Trigger, Left, A, R Trigger, L Trigger, Left, B
Cars Can Fly
X, Down, White, Up, L Trigger, B, Up, A, Left
Cars Drive on Water (Boat Properties)
Right, Black, B, R Trigger, White, X, R Trigger, Black
Cars Fly Away When Hit
X, Black, Down, Down, Left, Down, Left, Left, White, A
Chaos mode
White, Right, L Trigger, Y, Right, Right, R Trigger, L Trigger, Right, L Trigger, L Trigger, L Trigger
Click Left Thumb Stick to make cars jump
Up, A, Y, A, Y, A, X, Black, Right
Cloudy
White, Down, Down, Left, X, Left, Black, X, A, R Trigger, L Trigger, L Trigger
Destroy All Cars
Black, White, R Trigger, L Trigger, White, Black, X, Y, B, Y, White, L Trigger
Faster Cars
Right, R Trigger, Up, White, White, Left, R Trigger, L Trigger, R Trigger, R Trigger
Faster Clock
B, B, L Trigger, X, L Trigger, X, X, X, L Trigger, Y, B, Y
Faster Gameplay
Y, Up, Right, Down, White, L Trigger, X
Flying Boats
Black, B, Up, L Trigger, Right, R Trigger, Right, Up, X, Y
Foggy
Black, A, L Trigger, L Trigger, White, White, White, A
Full Weapon Aiming While Driving
Up, Up, X, White, Right, A, R Trigger, Down, Black, B
Have Jetpack
Left, Right, L Trigger, White, R Trigger, Black, Up, Down, Left, Right
Hitman Rank (All Weapons)
Down, X, A, Left, R Trigger, Black, Left, Down, Down, L Trigger, L Trigger, L Trigger
Increase Car Speed
Up, L Trigger, R Trigger, Up, Right, Up, A, White, A, L Trigger
Infinite Ammo
L Trigger, R Trigger, X, R Trigger, Left, Black, R Trigger, Left, X, Down, L Trigger, L Trigger
Infinite health (Explosions, drowning, and falling will still hurt.)
Down, A, Right, Left, Right, R Trigger, Right, Down, Up, Y
Commit Suicide
Right, White, Down, R Trigger, Left, Left, R Trigger, L Trigger, White, L Trigger
Killer Clown Mode
Y, Y, L Trigger, X, X, B, X, Down, B
Lock Wanted Level
B, Right, B, Right, Left, X, Y, Up
Lower Wanted Level
R Trigger, R Trigger, B, Black, Up, Down, Up, Down, Up, Down
Max Fat
Y, Up ,Up, Left, Right, X, B, Down
Max Muscle
Y, Up, Up, Left, Right, X, B, Left
Max Respect
L Trigger, R Trigger, Y, Down, Black, A, L Trigger, Up, White, White, L Trigger, L Trigger
Max Sex Appeal
B, Y, Y, Up, B, R Trigger, White, Up, Y, L Trigger, L Trigger, L Trigger
Max Vehicle Stats
X, White, A, R Trigger, White, White, Left, R Trigger, Right, L Trigger, L Trigger, L Trigger
Morning
Black, A, L Trigger, L Trigger, White, White, White, X
Never Hungry
X, White, R Trigger, Y, Up, X, White, Up, A
Night
Black, A, L Trigger, L Trigger, White, White, White, Y
No Muscle and No Fat
Y, Up, Up, Left, Right, X, B, Right
No Pedestrians / Low Traffic
A, Down, Up, Black, Down, Y, L Trigger, Y, Left
No Pedestrians or Cops (Gan Riots)
White, Up, R Trigger, R Trigger, Left, R Trigger, R Trigger, Black, Right, Down
Noon
Black, A, L Trigger, L Trigger, White, White, White, Down
Orange Sky
Left, Left, White, R Trigger, Right, X, X, L Trigger, White, A
Overcast
Black, A, L Trigger, L Trigger, White, White, White, X
Parachute
Left, Right, L Trigger, White, R Trigger, Black, Black, Up, Down, Right, L Trigger
Pedestrian Attack (Can't be Turned Off!)
Down, Up, Up, Up, A, Black, R Trigger, White, White
Pedestrian Riot Mode (Can't be turned off!)
Down, Left, Up, Left, A, Black, R Trigger, White, L Trigger
Pedestrians Are Elvis
L Trigger, B, Y, L Trigger, L Trigger, X, White, Up, Down, Left
Pedestrians Attack with Guns
A, L Trigger, Up, X, Down, A, White, Y, Down, R Trigger, L Trigger, L Trigger
Pedestrians have weapons
Black, R Trigger, A, Y, A, Y, Up, Down
Perfect Handling in Vehicles
Y, R Trigger, R Trigger, Left, R Trigger, L Trigger, Black, L Trigger
Pink Traffic
B, L Trigger, Down, White, Left, A, R Trigger, L Trigger, Right, B
Prostitutes pay you (Pimp Mode 2)
Right, White, White, Down, White, Up, Up, White, Black
Raise Wanted Level
R Trigger, R Trigger, B, Black, Right, Left, Right, Left, Right, Left
Recruit Anyone (9mm)
Down, X, Up, Black, Black, Up, Right, Right, Up
Recruit Anyone (Rockets)
Black, Black, Black, A, White, L Trigger, Black, L Trigger, Down, A
Sand Storm
Up, Down, L Trigger, L Trigger, White, White, L Trigger, White, R Trigger, Black
Skinny
Y, Up ,Up, Left, Right, X, B, Right
Slow Down Game Play
Y, Up, Right, Down, X, Black, R Trigger
Spawn Bloodring Banger
Down, R Trigger, B, White, White, A, R Trigger, L Trigger, Left, Left
Spawn Caddy
B, L Trigger, Up, R Trigger, White, A, R Trigger, L Trigger, B, A
Spawn Dozer
Black, L Trigger, L Trigger, Right, Right, Up, Up, A, L Trigger, Left
Spawn Hotring Racer #1
R Trigger, B, Black, Right, L Trigger, White, A, A, X, R Trigger
Spawn Hotring Racer #2
Black, L Trigger, B, Right, L Trigger, R Trigger, Right, Up, B, Black
Spawn Hunter
B, A, L Trigger, B, B, L Trigger, B, R Trigger, Black, White, L Trigger, L Trigger
Spawn Hydra
Y, Y, X, B, A, L Trigger, L Trigger, Down, Up
Spawn Monster
Right, Up, R Trigger, R Trigger, R Trigger, Down, Y, Y, A, B, L Trigger, L Trigger
Spawn Quadbike
Left, Left, Down, Down, Up, Up, X, B, Y, R Trigger, Black
Spawn Rancher
Up, Right, Right, L Trigger, Right, Up, X, White
Spawn Rhino
B, B, L Trigger, B, B, B, L Trigger, White, R Trigger, Y, B, Y
Spawn Stretch
Black, Up, White, Left, Left, R Trigger, L Trigger, B, Right
Spawn Stunt Plane
B, Up, L Trigger, White, Down, R Trigger, L Trigger, L Trigger, Left, Left, A, Y
Spawn Tanker
R Trigger, Up, Left, Right, Black, Up, Right, X, Right, White, L Trigger, L Trigger
Spawn Vortex
Y, Y, X, B, A, L Trigger, White, Down, Down
Stormy
Black, A, L Trigger, L Trigger, White, White, White, B
Super Bike Jumps
Y, X, B, B, X, B, B, L Trigger, White, White, R Trigger, Black
Super Jumps
Up, Up, Y, Y, Up, Up, Left, Right, X, Black, Black
Super Lung Capacity (Infinite Oxygen)
Down, Left, L Trigger, Down, Down, Black, Down, White, Down
Super Punches
Up, Left, A, Y, R Trigger, B, B, B, White
Traffic Lights Stay Green
Right, R Trigger, Up, White, White, Left, R Trigger, L Trigger, R Trigger, R Trigger
Weapon Set 1
R Trigger, Black, L Trigger, Black, Left, Down, Right, Up, Left, Down, Right, Up
Weapon Set 2
R Trigger, Black, L Trigger, Black, Left, Down, Right, Up, Left, Down, Down, Left
Weapon Set 3
R Trigger, Black, L Trigger, Black, Left, Down, Right, Up, Left , Down, Down, Down
Yakuza Mode (Peds & cars are Asian Gang)
A, A, Down, Black, White, B, R Trigger, B, X