The graphics look really cool, I especially like how pretty it gets if you have multiple shot upgrades. The dodging in this game is also really fun, and I like that there's multiple types of enemies with different shooting patterns. The nuke is also a pretty creative concept - at first, I thought I didn't need it, until I started getting swarmed by enemies.
I'd add more visual or audio cues for the nuke. Right now, the only way to tell if your nuke is full or depleting is by looking at the indicator, which is an issue because if I'm looking at the bottom of the screen then I can't see the gazillion bullets I'm trying to dodge. I would also make it so that charging the nuke prevents shooting, but doesn't prevent movement, as 10 seconds is a long time to charge. That way, it turns into a "congrats, you dodged stuff for 10 seconds, now here's your board wipe" button. Finally, I might be wrong on this, but I think some bullets do more damage than others? It's really hard to tell because they all look the same, but I feel like I was getting one-shot by the later enemies.
Overall, very pretty game with fun dodging mechanics. I had fun playing it!