I came back to this after playing it a couple times, and I was surprised to find that I was able to manage the difficulty really well and beat it without dying! I think it might have been because once I got the hang of the controls, I was able to keep alive alright earlier on and rack up coins, and dying in late-game really sets you back since it's harder to afford health jets. It can be really punishing to lose all your coins near the end.
I like the retro aesthetic, the patterns of enemy shooting were fun, and I also really appreciated that the enemies had larger hitboxes than the player, although it made it difficult to pick up coins sometimes because the player sprite could be fully covering the coin, but wouldn't pick it up unless it was centered just right.
Overall, a fun bullet hell!