The order you paste determines whats on top. You just paste the slot reel image first then paste the other image on top of it. Moving the image up is just moving the y coordinate you paste the image.
` Make a foreground image
ink rgb(0,255,0),0
box 0,0,screen width(),screen height()
ink rgb(0,0,0),0
box 0,0,207,207
` Grab the foreground image
get image 2,0,0,screen width(),screen height(),1
load image "reel_normal.png",1,1
do
cls
` Show the reel image
paste image 1,0,y,1
` Show the foreground image
paste image 2,0,0,1
` Decreate the y coordinate (moves the image up)
dec y
` Check to see if y needs to be reset
if abs(y)=image height(1)-screen height() then y=0
loop