``` MEMSET 12288, 64, 255 SPRITE 0 SHAPE 192 AT 100,50 COLOR 1 HIRES ON BACKGROUND ON SPRITE 1 SHAPE 192 AT 124,50 COLOR 2 HIRES UNDER BACKGROUND ON ``` <img width="445" alt="image" src="https://github.com/neilsf/xc-basic3/assets/1869202/d992372a-4077-4b77-9f67-5e2ed02aa484"> Perhaps parser confuses options `ON` and `ON BACKGROUND` (at least my VSCode extension does 😆 ). One option would be to use `OVER BACKGROUND` instead.