The manual feels rushed, and has typos and other slip-ups here and there. The included assembler script isn't all as capable and incompatible with Python 3.

Despite the fake CPU having a simple VLIW instruction format, the unused portion of the list of 64 opcodes is not filled up with some useful instructions that would pretty often increase code density. It's notably missing add/subtract without carry. Also, the arithmetic and bitwise ops that take the "ORR" and "ORRI" forms can't take the "ORRA" form, despite INC and DEC supporting "OA" to allow them to perform a Read-Modify-Write operation on a memory byte. So the CPU is trying to be both RISC-like and CISC-like at the same time... huh?

I only find this fantasy computer "fun" because of the creativity the graphics limitations can spark compared to PICO-8's 4BPP capabilities, and having to use line interrupts to get as much colors out of it to get any impressive-looking games at all. And also because... it's all assembly language-level stuff! Even though I think it sounds fun for me, it may not be that fun for you if you're a noob at programming, so stick to one of those Lua-based fantasy consoles/computers before you even try to meddle with this.