Hasn't this been TASed and rejected before?
orig = AVIsource("sm64ds.avi") #++ AVIsource("part2.avi") ++ ...
up = orig.crop(0,0,-0,192)
stackhorizontal(up.pointresize(up.width()*2, up.height()*2), orig) #maybe lanczosresize is better
#pointresize(width()*2,height()*2)
Warp to 8-3 Enter the Options screen and switch the controls to A and C for Fire and B for Jump. Return to the title screen wait for the demos to begin. Watch the demos until you see an extremely dark level. The demo will run for a while and then pause. Press Start to unpause and enter the game. You will die and begin at the Volcano level. Keep spitting to light up the place, otherwise it will be totally dark.
I've tried Overlay on some transparent picture, and it adds black around it.
layer(src, subtitleimageclip.mask(subtitleimageclip)function press(param)
local temp={}
for _,s in ipairs(param) do temp.s = true end
joypad.set(1,temp)
emu.frameadvance()
end
function macro(param)
for _,t in ipairs(param) do press(t) end
end
while(true) do
emu.frameadvance()
keys=input.get()
if keys["F11"] then
press{"A","B"}
press{"A"}
press{}
press{"B"}
end
if keys["numpad0"] then macro{{"A","B"},{"A"},{},{"B"}} end
end