While you are creating your outcome you should collect some evidence of the tools, techniques and design elements you are using.
Tools - motion tweening, variable, animated objects, backgrounds, frame by frame animation, camera angles, graphics tools used to create objects, fill, stroke and fill, drawing shapes
Techniques - colour, camera angle, movie in a movie, object with no sprite for timer/score, using views to follow character, moving background
Design elements -colour, images used to represent items (lives), font colour/size, contrast, placement of objects on the screen score top corner, buttons.
Setup a google doc to collect some screen shots of the the software you are using. This does not mean collect a step by step set of instructions on how to complete the task but a demonstration that you know what tools, techniques and design elements you are using to construct your outcome.