Certain classes, such as the Spy, have a system that allows you to switch between Archetypes easily.
Each Genre has different abilities and is like a mini-class, but is defined mainly by the class which earns it.
When a member of a Genre Oriented class levels up, they have a chance of earning a new Genre, which will have different uses for the same mechanics, such as Action or Suave.
You can switch between genres in a flash, using the Genre Grid.