This is a difficult game! I would maybe make the first round a bit easier, but otherwise this is a snappy game! Nice work!

The play area scaling was somewhat overwhelming but still enjoyable in retrospect. I didn't get too far, so if this happens already then ignore me, but I think you could have explored non-linear scaling, for example, making the play area twice as tall as it is wide. Graphics were really nice and I liked the visual processing of, e.g. the particle FX.

The spawns felt slightly unfair, and I think it might have been nice if these were cued in some way, for example a short warning indicator giving the spawn position and angle. I think it would be perfectly fine to not indicate what the bullet type is, as then that leaves the player with something to react to.

Great job submitting!

Fun game, I would suggest making you start out big and shrink when you get hit, the way it is now gives it a bad feedback loop.

Cool game, Crab shady approves!