Hi guys. There is another concern I have.

While it is certainly possible to run your cart at 30fps using _update() or 60fps using _update60() how do you go about arbitrary speeds like 13fps or 129fps and having the ability to change it during the execution of the cart ?

The reason ? Early arcade games such as VENTURE would make the game harder not just by making the enemies more aggressive but more importantly, actually upping the frames-per-second rate of the gameplay making it that much more difficult. I wanted to bring this option to Pico-8 as I have not seen any games yet that do this - where you can increase the framerate by any rate.

You can sort of do this in Pico-8 by NOT using _update() or _draw() and flip() yet ... how do you do write this cart WITH the standard _draw() and _update() ... and in fact is there some way to POKE a forced FPS for _update() and/or _draw() that can be as low as 1fps and exceed 60fps or even go up to something like 240fps ?

-- how to make this with
-- conventional _init() and
-- _draw() and _update() ?

function main()

speed=16
-- from 1 to 16384
-- try 1, 16, 128, 1024, 16384

cls()
c=0
for y=0,127 do
  for x=0,127 do
    pset(x,y,rnd(16))
    c=c+1
    if c==speed then
      flip()
      c=0
    end
  end
end
end

main()