That was a very clean and polished game, you balanced the stages really well and you even had time for a boss fight. And the UI looks especially great, it fits very well with the office theme :D !
I think you should've made it a bit clearer that those papers (or work) actually damage you because I thought for a fair amount of time that they were only particles, but that might also just be me so don't worry.
Also I like how the co-workers smile the entire time, I mean its pretty normal: just a guy throwing pencils at them lol. You managed to put an amazing game together. Good job (pun intended)!