Just kill the skeleton and pull the lever

So its a game for the GMTK Game jam where the theme is genre without the mechanics, so we did a platform game in which the controls on the keyboard do not exist and you have to control your character with the mouse. So the story is as follows, you just killed the last boss of the dungeon but died a little before saving the princess but a magician appeared and gave you the chance to save her but without using the controls on the keyboard with just the mouse so only kill the last enemy and save her from her terrible death