Here's pretty nifty application you might want to try on your PlayStation Portable. It's a little something from PSP homebrew coder dangee and it's an application called TrailBlaze.

So what does it do? Basically, TrailBlaze is an app that lets you "manipulate PNG images in 3D." You can get interesting effects if you try out the techniques the app offers. It's still in alpha and developer dangee notes TrailBlazer's current capabilities:

Manipulate a PNG in 3d realtime, to create some interesting visuals.
Screenshot support

Well, check it out by clicking the download below. Don't forget to give the readme file at least a once over, as it contains important information like installation instructions and other notes from the dev. Enjoy!