Music, look, and feel all fit well and made this a coherent experience. With fun gameplay.
One thing that stood out to me were the colored spotlights. I only noticed them after a minute or so, but even before that I noticed that I had an easier time spotting enemies than I would've expected with all the colors everywhere. Your spotlights drew my attention without me even realizing it. That was really impressive.
There's a few things that would've improved my experience as well:
- some way of influencing when the DJ's shield drops, so that part's not just a waiting game (stepping on / shooting lots of buttons / doing magic dance moves or something)
- a laser sound effect that fits a bit better with the music (maybe even blends into it) and/or has some variation
- art could use some polish. It fits your game well but gives me huge 'beta art' vibes.
But that's probably a bit more 'suggestion' than 'criticism'. For a 48h jam this was amazing. Don't think I had this much fun with a rhythm game since Necrodancer (don't tell my team I said that lol)