This was fantastic.
I absolutely love the way you get slightly stuck when you're trying to shove your way through a more crowded part of the dance floor (as compared to the more spacious areas) because it perfectly replicates that awkward feeling of "Excuse me! Pardon me! Coming through!" that we've all felt when we visit a nightclub and are trying to get back to our friend group in the middle of the club. It was also a great touch to filter the music when you're in the bathroom and unfilter as you leave (that kind of audio attention to detail makes me happy!).
The art style and theming is fun and fits the game perfectly, the moving dancers are both hilarious and well-made, and it really feels like a club. Like other folks, I'd love to see it get harder after some amount of time (maybe there are more security guards or each delivery grants you bonus time somehow)?
Also, in an ironic way, once you notice the security guard, it even almost feels like a horror game in some ways as you frantically make your way through the crowd to avoid the guard as he trails behind you. (That's a good thing - it got me motivated to get out of the way and evade him - and added to the pace of the game!)
Anyhow, great job. I love it!