Am I the only one who thinks that someone needs to re-skin the invasion creatures? Hell I'd do it myself if someone can tell me how to open the skins in PSP. I have a great fondness for that mode and it just kinda takes away from the adrenalin pumped feeling of frenzied survival... when the nightmares comming for your blood and soul are pixelated blurrbs.
Just seems like it would be a great chance for someone to Mod a Nightmarish add-on..