Thank you so much for your feedback!
I'm glad you liked our game and that you were able to appreciate the music details. We tried coming up with some office themed proyectiles, but we ended up thinking of water droplets, which would damage a keyboard in real life. But it's true that we could have implemented other proyectiles, such as pen caps or clips as time passes to create some gameplay progression and a more cohesive office theme.
Wish you luck with your game :)