Working on a software engineering project and need support to help me understand better.

Instructions are in the page 1 and 2. Third Page Questions:

The user will only be able to play the game if he has points. If the user has no points left before the end of the game, the game will be over and the user will lose. Some of the details of the game is not provided however you have enough information to complete the below questions.

Please draw the Use case diagram for the above game (you can omit administrator of the system in your drawing)
Please write “going to the exit” scenario for level 2
Please draw a sequence diagram to kill the monster with an arrow. You can assume that all your function calls will return a positive answer (but you should call the functions)). Hint: Please find out first what kind of objects (classes) you would have for this part of the game.