how do you assign buttons???

its b=button<> the write b==0 then x=x+1: locate x–1, y print" "

and don't forget vsync 5

The simplest way to use buttons is this: IF BUTTON(2) AND # THEN DO STUFF The "#" should be the number corresponding with the BUTTON you want (16 for A, you can find the whole list by pressing the question mark on the top right of the screen while the curser is on BUTTON in your code), or "#A" if you want A, "#DOWN" for down, etc.