Mapping a dual-analog PS2 controller to the single-analog PSP was always a challenge. The GTA 3 port adopts a control scheme identical to Liberty City Stories . Players use the analog nub to steer or move, the D-pad to change weapons, and a combination of the L-trigger and analog nub to look around. How to Play GTA 3 on a PSP
While Rockstar officially released Liberty City Stories and Vice City Stories for the PSP, a dedicated, official, retail port of the original GTA 3 never saw the light of day. However, this didn't stop the dedicated modding community from bringing Claude Speed's journey to the handheld console. 1. The Demand for Portable Liberty City gta 3 psp port