first of all, ty for opening the readme!
second of all, you NEED custom firm ware, if you dont know what this is, look it up...

put the chicken invaders folder in MS0:\PSP\GAME\

im not sure what firmware it works on, all that i know is that it works on a psp fat with 5.00 m33 and a 1.5 kernal add-on.

if it does *not* work on your psp, send your psp details to kerey13@hotmail.com