ok, can you change that 0.25 to 1 or maybe to 2, and upload?
I think that will do.
You could enrich with the tweentype like
delayedcall(6,tween(hotspot[parche1].alpha,1,2,easeoutquad));
and
delayedcall(12,tween(hotspot[parche1].alpha,0,2.easeoutquad));
or any other tweentype.
Tuur