This macro is designed for the Roblox game and a specific mini-game - One Punch Man: Destiny. You need to use it when you reach a level and get a class named Esper or Dark esper. The purpose of the macro is to free you from the need for repeated keystrokes and prevent the keyboard from breaking. In order for the macro to work correctly, you must have all available skills open.
Link the macro to a button convenient for you and just leave your character for the boss farm. It is also advisable to get closer so that the boss can't kill you. Do not forget to follow the game process and adjust the speed of the macro to match your style of play.