Really great game! The way the art, design, and music all come together is fantastic.
I found it a little counter-intuitive that the bomb select wheel rotates counter-clockwise. I kept expecting right click to rotate the other way, and ended up trapping myself with mushrooms.
I think the recharging bomb mechanic is really neat, and the bomb capacity upgrades are a good idea for an optional pickup.
It kind of has that roguelite/Darksouls quality where rushing through rooms tends to get you surrounded and killed. I liked that. Even the early rooms never stopped feeling like a challenge.
There were a couple of points were the screen transitions felt unfair. One where I had to bounce up on a mushroom and land on a platform in a different room, and one where a rat was able to walk across the room transition and surprise me.
Overall, really impressive entry. It's scoped really well, and feels very cohesive.