Update 1.1 of Jelly the Not-Fish is out. This update makes the normal mode of playing slower so things are not as difficult. The old superspeed way of playing is still available to play by toggling "Crazy Classic" mode. Also, the game can be paused, the plankton are now animated, Jelly's "hitbox" or whatever has been improved, and also Jelly's moving borders were slightly expanded. There are also some other slight bits that have been changed, but these will be listed in a changelog file which will be part of the upcoming Codeberg repository for this game, which will store the current and past versions of the game. Stay tuned for that.
I've had some plans to implement sound effects into the game, but that will be saved for a future update. Future updates might also include more modes of playing. @Modanung's suggestion of making it so that the game gets progressively harder sounds interesting, though I hadn't ended up implementing that in this new update. Maybe I will implement it in the future. For now, what matters is that the game is less ridiculously hard by default.
UPDATE: The Codeberg repository is now out!