There is not any cheat for passing levels.You can may do some hack in the game to do that .
Not that I know of, if you want cheats go to http://au.gamespot.com/pc/action/grandtheftautovicecity/hints.html
yes there is. i once used it
gta vise city storeys cheats
yes
Yes there are cheats for GTA Vice City stories.
no
You enter cheats during gameplay.
can you get hellycopter cheats for gta liberty city stories?
there is none
no because that's not what cheats are for
There is no cheat for it.
You can find many walk-throughs as well as tips, tricks and cheats in the related link