I am a huge fan of GTA game. GTA Sanandreas is best game to play graphically. If you want to play Sanandreas game with much efforts. I mean use cheats and clear the levels or just roam around to perform various tricks. Then you can use GTA SA crazy trainer with more than 150 cheats available. Here is GTA SA crazy trainer explanations and its direct download link
GTA SA crazy trainer explanations and direct download link
How to run GTA SA crazy trainer with Sanandreas Game
Sometime antivirus detect this trainer as virus and removes it. If you are facing this problem then do whitelist this trainer on your antivirus software. Exclude files option is given in some antivirus softwares, use that to exclude this trainer .exe file. This trainer is not a virus, so no need to worry about.