Also, you can play versus(and survival, if you get the GOTY edition) offline by selecting join friends, the pressing X to start your own lobby, it tricks the game into letting you play the modes. Why there wasn't just an offline option on the main menu is beyond me.
Visa - Digits two through six are the bank number, digits seven through 12 or seven through 15 are the account number and digit 13 or 16 is a check digit. MasterCard - Digits two and three, two through four, two through five or two through six are the bank number (depending on whether digit two is a 1, 2, 3 or other).
Visa number: the visa number is the eight digit number in red located in the lower right-hand corner. If the visa was issued prior to 2002, the visa will look slightly different than the picture above but the number is located in the same place. For visas issued before 2000, the number is located at the top of the visa in the center. Like the other two it is also red in color.