AnonymousTipster, creator of RoboTORN3D, has released another fine 3d program for the PSP, this time ThrottleX. ThrottleX is a game in which you drive your buggy down a path to try and pass through every gate to complete level after level. It really is entertaining. And now a word from AnonymousTipster:
This is the second release of the ThrottleX buggy racing platformer. This version comes with five new levels (17-21), with the last two being particularly mean. There are also 4 clues spread throughout the whole game (which includes <16) which tell you how to unlock a secret hidden within the game.

WARNING: IF YOU HAVE A PREVIOUS save.sav FILE, COPY IT TO ANOTHER DRIVE, INSTALL THROTTLEX 0.2, THEN COPY YOUR OLD SAVE INTO THE THROTTLEX DIRECTORY. OTHERWISE YOU WILL HAVE TO START AGAIN FROM LEVEL 1.

A few notes:
By pressing Select in-game, a screenshot will be saved to the root of the memory stick
The wheels are still square.
Thanks to NaYoN for a level idea.
Thanks to the PSP community for being supportive.

Have fun, try and find all the clues. It's worth it ;)