Note: I Recommended That 你 Complete All Missions Before Doing This Trick

When 你 Start Mission ''A 首页 In The Hills" 你 Will Back To Los Santos, And Help Madd Dog Taking Back He's Crib, Once 你 Done, Start The 下一个 Mission Until 你 Meet And Take Sweet Back To 兜帽, 罩, 发动机罩 From Police Prison On Pershing Square. Then 你 Must Take Over Back Your Hood, Once Done, 你 Can Start Gang War, Just Like When 你 Take Over Glen Park, Keep Start And Finish Missions Until Mission Los Deperados, Once 你 Done, 你 Must Take Over At Least 50% Gang Territories Before 你 Can Start Final Mission: "End Of The...

I got these off of a few websites.

SPEEDFREAK: All Cars Have Nitro
NIGHTPROWLER: Always Midnight
FLYINGFISH: Boats Fly
BUBBLECARS: Cars Float Away When Hit
STATEOFEMERGENCY: Chaos Mode
BLUESUEDESHOES: Elvis is Everywhere
SPEEDITUP: Faster Gameplay
CRAZYTOWN: Funhouse Theme
ONLYHOMIESALLOWED: Gang Members Everywhere
BIFBUZZ: Gangs Control the Streets
ROCKETMAN: Have Jetpack
PROFESSIONALKILLER: Hitman In All Weapon Stats
CJPHONEHOME: Huge Bunny Hop
FULLCLIP: Infinite Ammo, No Reload
WHEELSONLYPLEASE: Invisible car
NATURALTALENT: Max All Vehicle Skill Stats
BUFFMEUP: Max Muscle
WORSHIPME: Max Respect...