You need to press 'E' to attack. After 60 seconds, a boss will appear; you must defeat it using the 'E' attack to win the game. So far, this is all we’ve managed to complete, as we focused primarily on the story and art style—since this is our first game, we wanted to establish the style and plot first before building out the gameplay. We plan to improve the gameplay over time. Thank you for your feedback; we really appreciate it.