Phat 2 is more a concept than a demo. I wished to create a big-sized animation player using Z80's stack. The major problem here was not the code itself but the data content generation. I had to take back my own and deprecated software renderer (able to read LightWave 3D scenes) I wrote in the 2000s and created a special output adapted for the CPC. It was the first demo I created making good usage of interrupts to play music (thanks Overflow !). The demo is using a poor design and its reception was mitiged.