To finish this project, we will add a few more details to prepare for the next project. In the next project, we want to add a boss fight to this game; but when should the boss appear? I've decided to make this a timed event. The player should survive for a certain amount of time, shooting enemies along the way to increase the power of the spear. After 90 seconds, the starfish will disappear and a boss monster will appear.

You may have also noticed that the scrolling images tend to stick to the sides of the stage before disappearing. This is a feature of Scratch to prevent you from completely losing sight of sprites. To get rid of these lingering sprites, we use a visual trick to obscure them.