Nice entry, with good visuals (especially the VFX) and audio!
I'm no good at twin-stick shooters and bullet hells so I didn't get far, but I liked what I saw and was intrigued to see more of it. I also enjoyed the badge system, though I only got the magnet and coin+ badges.
I encountered a few issues though. First is the healing action really missing an audio cue both when you're focusing and then once you're healed. It made it pretty difficult to heal in the middle of fights, as you need to pay attention to your health bar instead of the enemies.
Space to dash was too far for me from either WASD or the mouse, so hitting it during the action was a struggle. This means I never really took advantage of it to avoid attacks. I would have preferred it on the right mouse button for quick access. Playing with the gamepad felt a bit better, though it was a bit strange to use the analog triggers instead of the shoulder buttons. Also, the cursor was jittering, but this may be a deadzone issue as my controller is pretty old.
The enemies felt a bit too spongy for my tastes, but again: bullet hells are not my genre of predilection. I only had a few minutes to play this evening so I gave up at the first boss's second phase. My biggest issue with it was that your invincibility period is really short (if you even have one, I'm not sure) so one mistake usually meant I lost most of my health at once. Though I'm sure I could have beaten it with perseverance, a bit of luck and maybe after grinding for the longer reach badge.
All in all a solid entry. I definitely enjoyed my time with it and I was intrigued to see more of it. It could really shine with some added polish. Good job! :)