The plot is kept vague enough to have you curious but not entirely out of the loop. The visual of a destroyed dilapidated city filled with fleshy red ooze is very interesting and had me wishing I could explore more. The choice of ambient droning music fit very well especially when spliced with the radio call.
My only real desires come from wanting to see this expanded upon. Perhaps some clearer graphics, doesn't have to give up the pixelation completely I just want to see things a little better. Also I feel like it would've been interesting to be able to interact with the radio, perhaps mess with channels or have a more distinct call from the final message (getting more pieces than just the beginning as you get closer).
Regardless, I still fully enjoyed this and think you did a great job both atmospherically and story wise.