Testing is an important part of any project as it allows you assess the sucess of your manufactured product against the specification.
Testing will allow you to see how well your product works in real life as well as identify ways that it could be better. The practice of testing is important to ensure products that are designed and made are fit for purpose and that continuous development can be achieved.
Here are some images of students testing their gaming devices:
test your gaming device yourself by playing your game. Take photos of this process and write some comments about the success of your outcome against the specification on your website - you could create a Procreate presentation poster to show the testing process
Ask your classmates to test your gaming device and conduct an interview to find out their opinions about what they like and don't like about your product.