Trainer есть здесь:

http://avault.com/cheats/getcheat.asp?game=dl_gta3trn

Читы:

Взяты отсюда:
http://codes.ign.com/ob2/068/015/015784.html

Cheat List
Type one of the codes below during gameplay to activate its function.

Читы:                Что значат:

anicesetofwheels   - Invisible Cars
bangbangbang       - Destroy all cars
boooooring         - Speed up Gameplay
chittycittybb      - Flying vehicle
cornerslikemad     - Better vehicle handling
gesundheit         - 100% Health
giveusatank        - Tank (Rhino) appears
gunsgunsguns       - Get All Weapons
ifiwerearichman    - More Money
ilikedressingup    - Change Outfit
ilikescotland      - Cloudy Weather
ilovescotland      - Rainy Weather
itsallgoingmaaad   - Insane Pedstrians
madweather         - Super-speedy Game Clock

morepoliceplease   - Higher Wanted Level
nastylimbscheat    - Crank Up Gore
nobodylikesme      - Pedestrians Attack
nopoliceplease     - Lower Wanted Level
peasoup            - Foggy Weather
skincancerforme    - Clear Weather
timeflieswhenyou   - Clock Moves Faster    
weaponsforall      - Pedtrians Fight One Another