whats wrong with line 12

take away the # and put $ behind a and b

i did that as well change the wording to it and it still lists a error

And in line 5 you use inproper grammar

heh typos i will fix that also you mean line 6

lol yeah

#A, and #B are constants used to check bit flags from the Button() command. Button() and #A for instance will be 0 if [A] is not pressed and a non zero value otherwise. So you want a different variable like say ret$. The other problem is you are asking users to type in two values. You don't want that. Instead ask for one variable then check that against "A" or "B" to get the right course of action

I think you want something like the attached. Unless you are doing something fancy like button presses or menu selections.

until without repeat what does that mean cause i dont want this to loop

on lines 15 and 16 you need to check if the result is "A" or "B". The repeat should be before the input so you loop until you get a valid response. Don't want then player sending garbage to your code.

how do you check if its valid