The first trainer for GTA 4 that works directly from the game. To activate one of the trainer's features, press:
F1 - immortality F2 - get ammo F3 - remove all stars F4 - repair vehicle F5 - save F6 - Get $3754 F7 - open all bridges F8 - get police car F9 - Get Infernus F10 - Get Tourismo F11 - Get FIB Buffalo F12 - Get Annihilator ALT+F1 - disable immortality ALT+F2 - turn off water ALT+F3 - turn off shadows