Tony Hawk's Pro Skater 4 Hints

Go to the Kona level and go over to the guy that wants you to get the birds off of the power line. When you do it drop down the halfpipe and go above the power line. While you're above the power line do a 900.Since you can't fully land a 900 you'll hit the power line and get electrocuted. You'll turn black and as you get up you will look like you're about to change back to normal, but instead you'll change into a zombie. When your a zombie you half to go and land 1 trick and when you do you'll unlock all levels and get every single one of your stat points all the way up. Once you've done that you half to do another trick, but this time you'll have to fall. When you fall your head comes off and then a ghost will come out of the head .Once you've changed into a ghost go into some grass and then fall again. You'll sink into it and then the whole level will change into a graveyard. You better make sure you save this because it can be really, really hard to do sometimes. This cheat really works. All of my friends have tried it and they were very successful in doing it.

In the college level, there are powerlines everywhere. next to the shop where Skate Rat stands, there is a little green box, which controls the power. do a lip trick on the box and you have to grind along the powerlines until the counter gets back to zero. you get cash for it but i can't remember how much.