In this game, the ghost is afraid from the ghoul. If the ghost touches the ghoul, the ghost's size will get small. IF the ghost's size is -1 or more, you will loss the game. If the ghost eats the watermelon, its size will increase. If the ghost's size is 15 or more than it, you will win the game. You can move the ghost by pressing either arrow keys or A, W, S and D keys. You cannot go out of the border.
Credits to my academy which taught me scratch and little to me. You can see my other small but wonderful projects on- https://scratch.mit.edu/search/projects?q=TalentedProjectMaker