Kao the Kangaroo: Mystery of the Volcano - Polish Demo

This is the Demo/Trial of Kao the Kangaroo: Mystery of the Volcano (also known as Kao: Tajemnica Wulkanu in Poland) it contains unknown stuff (probably the first level?) please let me know what it contains in this demo.

This Demo was exclusively available on some Poland magazines containing other demos at the time and taken from Gry Extra on January of 2006 CD2 (thank you internet archive for preserve it!) of course this demo is only on polish.

for whatever reason unlike the full game which uses StarForce's DRM the demo uses it as well meaning the demo is unplayable without an way to bypass it.

source: Gry Dla Dzieci Extra 01/2006