Step 5: Making a Mode
Making a new mode: A mode defines the specific reaction your game should have to various events that occur. If you want the player to receive 1000 points every time a specific shot is made, you will define that code within a mode.
The Mode is the basic building block of coding your own game; Modes can be as simple as defining a response to a single switch in your machine or they can handle every switch in your machine as the complexities of the sequences in which those switches might be hit.