Wheels

There are so many types of wheels, I don't even try to count them. Here they are:

Types

 * 1) Wood- These wheels aren't special.
 * 2) Iorn- These wheels stick better onto the pig's machineSuction-Cup- These wheels have suction-cups connected to them.  They are used for bug-type machines
 * 3) Big- These wheels can be powered with a motor.  The are used for car-type machines