For those wondering how to create juice for your jam builds this is a prime example of how a few systems can be combined to create something truly spectacular. Paying attention to how the sprites move subtlety, the sync of the UI element bounces, and the organic design of some elements against the slanted "cool" style of UI elements makes everything feel incredibly polished.
It would be cool to swap out soundtracks for difficulty modes, such as a faster paced beat to do more damage but face more enemies.