Sure thing! Those old toy robots were basically tiny, purpose‑built computers on a chip. The firmware lived in a few kilobytes of ROM and was written in assembly or a very simple byte‑code language. The heart of it was a loop that read sensor inputs—light, touch, or even a simple IR receiver—then mapped those to motor outputs and a few LED patterns. Because the hardware was so limited, designers had to compress everything: a single byte could encode a direction command and a delay. The “hidden features” usually came from cleverly packed command tables or a hidden boot‑loader that let you jump into a debug mode. It’s like finding a secret menu in a vintage vending machine—tiny, precise, and totally cool once you crack it.