Cocktails Zombie

Tips and tricks about dead Rising?
Ok.I have some questions about dead Rising I need help with.
1.When does the gate open to enter the Paradise Plaza from the Entrance Plaza?that way I can escort Burt,Leigh,and Aaron through zombies instead of those damn convicts.
2.What is an easy way to get the karate champ achievement.
3.How the hell can I get Frank The Pimp and Tour Guide?
4.What is an easy strategy to kill Cliff?Ive tried him 7 times and he kills me.
5.Where are these books to upgrade my food,Mini Chainsaw,ect?
6.Easy way to stop Carlito in the van during Bomb Collector?
7.How do I get Stunt rider and Stunt Driver?
8.If I get Pauls infinite Molative cocktail,when I start a new game do I keep it or do I have to keep beating the crap out of him?
9.it took me 15 tries to kill Larry the first time.Any easy tricks to kill him?
10.What else can I do to get level 50 other than save the survivors?I am at 45 now.
achieve360points.com has a great guide on this
I mix cocktails: Zombie Cocktail Drink