As they typed, the codes read like incantations — pairs of hex bytes that promised to rewrite gravity, to skip bosses, or to paint hearts with the wrong color. But Alex treated them like grammar exercises. Where did a code point? Which addresses shifted when inventory counts changed? They loaded a save and nudged a value, noting how in-memory numbers corresponded to inventory slots and enemy health. A humble cheat that granted infinite potions taught them hexadecimal offsets and the concept of mirroring—how the same value appears in multiple banks.