Nice art (could've used animation)
I thought the upgrade screen could've been clearer - the text was too small and cut off, and i think maybe it should be visible even when you don't have the money - to provide incentive. for a while i thought the money was pointless.
Some of the obstacles feel quite arbitrary and there is no way to avoid them - the coffee machine breaking down for example, and the floor patterns can often swap right when you're walking on it, slipping you up of no fault of your own. That being said, it is a delightfully tense experience.
Sound was alright, although i won't judge you on the music because you didn't make it. Good choice of music though.
It tangentially fits the theme - not much collaboration if you ask me.
A lot that could've been better - but 4 stars because i liked it anyway