Still using subroutines :) No DEF just yet...

Why not? It's free for the DEFing.

I figure a DEF isn't needed unless you want a returned value or temp variables. Using both atm now though, as some things do require that.

Not needed, sure. Still, I prefer them just because they feel more natural.

what does gosub and return and vsync do?

GOSUB makes the code jump to an '@' section like GOTO, but you can go back to where you were before in your code using RETURN. VSYNC is used mainly in loops, it helps maintain a steady speed. You pretty much want a VSYNC 1 in every loop you have.

ok

More accurately, you'll want it in any loop that's supposed to execute once per frame. Hardly every loop.