Underground Tunnels
First get a PCJ and head for the hospital on staunton island. Go into the construction site next to the hospital. When going in knock down the barrier andthen go back get a run up drive the the site and up the dirt pile and land on the second roof. When on there turn right and slowly drive into the wall then when your front tire goes into the wall speed up then you should fall into the underground tunnels that are blocked off. P.S the only way to get out is to die or to reload.
We have more cheats and tips for this game here, Grand Theft Auto: Liberty City Stories cheats
Comments for this hint