@flatduckrecords.co.uk Really it’s JB Langston’s work (based on a C64 demo) for TMS9918. I had played with adapting it to Spectrum attribues a while ago, but realised it would be a neat project to get to know the Next tilemap—it’s well suited to 40x32 layout in “text” mode (256 patterns using 8x8 1-bit tile definitions).