The Chipmunk BASIC exists on several platforms, one of the most advanced version of this BASIC is 'Macintosh port' from Ronald H. Nicholson, Jr. You can find it and learn more about Chipmunk BASIC at http://www.nicholson.com/rhn/basic/
I made PSX Chipmunk BASIC as a exercise to explore each aspect of the PlayStation Programming, however some people manifested an interest to it for programming.
With PSX Chipmunk BASIC, any non-C programmer will find a way to make some little programs, demos or games for the PlayStation.
PSX Chipmunk BASIC can be used by anyone to test out some effects with sprites, render an image or a 3D object.
Have a look to the PSX Chipmunk BASIC readme.txt file.
To make it work correctly, you need an Action Replay and a ComLink Interface with Caetla Roms or a Siocons Yaroze like Interface.