You get faster as your agility goes up. You can actually get scripts for PC version to where you walk around and jump in circles, like deuspack gave us. If you get bit by a vampire, you'll move hella fast also.
I got the xbox version tho, so having good agility meant that I would just use my foor to move the control stick around while reading a book or somthing.
Actually, you can find people in the game who can train you for a price. You are low on cash at the beginning, but my neighbor who played forever had what seemed like over 300,000 coins could just buy anything.
Oh, and btw, there is a cheat where u hold in certain buttons at the stat menu and it brings all ur health back to full.
