I really like the direction of the game! The opening and closing messages went by a little too fast. Maybe have the player scroll through the page or some way of letting the player read at their own pace. I noticed the text bubbles in game, if they were near the edge, would go off screen and couldn't be read. (Maybe that's only in the web version?) It would also be nice to have a button to have the text complete typing as I had a hard time reading it while it was typing and continuing to expand the bubble.
I really liked the enemy designs and how they were the same creature but like different stages of it. Really, all of the designs/sprites were great.
The jellyfish enemies were really tough when there were two eggs spawning them. The one you're not attacking spawns a lot, which all attack at the same time, and it felt a little unfair even with having max upgrades. Definitely appreciate being able to respawn with backtracking being the only consequence. Maybe being able to shoot their projectiles would be a good addition.
Music is 10/10 loved every piece!
It was really well done and polished especially considering the time spent. Overall I really enjoyed it and hope it gets to be expanded on in the future!