If you crave the "Rumble" experience on your handheld, these are your best options:
Rumble Racing was never officially released for the PlayStation Portable (PSP) Why Isn't There a Rumble Racing PSP Version? Download Rumble Racing Psp
The PSP is weak. The original PSP has 32MB of RAM (64MB on the 2000/3000). PS2 emulation on PSP is notoriously bad. Rumble Racing runs at roughly 40-60% speed. It is playable but suffers from sound crackling and lag on busy tracks. If you crave the "Rumble" experience on your