In this video, Jett Rink demonstrates how to get past the red barricades that limit the player to a confined area in the Mafia II demo. Jett is not using any hacks. This is a glitch. If you want to fully explore the rest of the city, you will need the no time limit patch and also the no fail mission patch.
Mafia II also portrays blacks as racist,rude,and violent. If you run into a black npc, he’ll say “watch it cracka,” and when beating one’s face they say “its cuz I’m black huh, cracka.”
Anyway, It’s a great game, enjoy seeing the rest of the world.