PLYNX posted this on his site:

I've tried, just for fun, to port Virtual Jaguar (http://www.icculus.org/virtualjaguar/) to the PSP.

You can find the PSP 1.0 EBOOT here
Put the Jaguar BIOS image (jagboot.rom) in the same directory as the EBOOT.
Rename the cartridge image to cf.jag and put it in the same directory.

I've tried Cannon Fodder and Atari Karts ... and ... it's pretty slow, be patient

See Virtual Jaguar website for compatibility stats. (DSP is not enabled)

Keys :
A - Square
B - Triangle
C - Circle
Pause - Start
Option - Select

This apparently works on 2.0 as well. I hope they get the speed issues resolved. I can't wait to play Tempest 2000 on my PSP.

ive never played the jaguar. any good rpgs or 2d side scrolling fighting games.

cannon fodder looks good. ive never played it before. i hope this gets to full speed soon. keep up the good work.