Instructions in-game. v1: Released. v1.0.1: Modified costume so if you click anywhere inside a box it says number. v1.0.2: Added number list. v1.1: Re-scripted so the number/symbol always appears in the list. v2: Changed keypad style, hid number list, and added "number" variable.
@Scratchteam for creating Scratch. @SproutMan for telling me about Scratch. Me for the idea.