I can't find any info on how extensively people hacked this particular demo. From what I have found online, it had extremely minor differences from the final game, as opposed to the Gamecube version demos. The Gamecube demos only had the opening trail, and the main village area on the disc... Capcom cleaned them out pretty well. I'm unclear if the PS2 demo had any other maps left on the disc, though. Anyone have info on this? Just been replaying RE4 lately, and was wondering about it.