Yes, i was (still am) horrible at designing tutorials when i made this.
For Game Testing, there are some walls on the rightmost screen. The walls block off a rocket. The walls can be moved up and down using the sliders on the leftmost screen. When there is a clear path for the rocket to travel to the UFO, the testing will succeed, and the success likelihood will go up by 20%. The button underneath the percentage will launch the game, and it will have a chance to succeed or fail based on the success likelihood. 0% will guarantee a fail, 100% will guarantee a success, etc. Failed games will slightly decrease your money, successful games will increase your money slightly or substantially based on the success likelihood