So! I really like what you have so far and also what was added with the update, I like the expansion to the castle and the new preds.
(I apologize in advance for the amount of text below.)
Now this is just a personal preference but I think you should consider making going through portals be pressing DOWN instead of UP as it can feel kind of clunky and unresponsive sometimes along with it also being bound to jumping. Getting out of the water on your own also feels very finicky. Most of the time I feel like you hardly leave the water, othertimes you actually gain height.
And most importantly, I have noticed a few bugs and two soft-locks. (Which is the main focus of this (Some that were also present in the v0.0.1b build. (don't ask how I found some of these :d)))
1. Struggle Banking (Minor): The amount of times you struggle while inside of an enemy is stored for some reason. For example: If you struggle 6 times for the front door and then escape out the back door, if you get grabbed again at any point you would only need to struggle twice to escape from the front. This lingers between rooms, different enemies, and even after continuing from death.
2. Enemy Double Jump (This one is kinda just funny): When an enemy is jumping against a wall, if you move that enemy away from the wall then move them back they can double jump. This can allow for the first Umber to get out of the pit, and even the second Umber on the high pillar to get back on top of it.
3. Room 1 Enemy Trigger (Minor): In the first area, on the left edge of the floor with the first heart you can pick up, if you double jump and hit your head on the platform above you, you hit the trigger that despawns the first two enemies and spawns the last two.
4. Mushroom Double Jumpn't (Minor): If you hit a certain spot when landing on a mushroom on either the top right or top left it consumes your double jump until you land on the floor again. It's not hard to hit this spot at all.
5. Health Resetting (Minor): Entering a new area resets your hearts back to 6 regardless of if you had more or less.
6. Boss Soft-Lock (Severe): If you get eaten by one of the enemies in a room before a boss respectively, and then enter the boss arena during the grace period where enemies can't do anything, the bosses break and never start moving, this causing a soft-lock. This happens EVERY TIME so long as the grace period is in effect.
7. Enemy Soft-Lock (Severe): If you get eaten by the Cat(?) in the castle and they fall into the trigger leading to the Bayla encounter, both you and the cat get deleted and the game soft-locks. By extension this also happens with the Frog(?) right before the Rubianne encounter as well. You'll slowly lose health but never game over even when you run out of health. Nothing will happen and you'll be stuck staring at the background and listening to the sound of you losing health.
I probably missed some stuff here and there (and I also understand that most of these are super niche,) but these are what I found when I was just messing around. If it helps in any way I'm playing on Windows 10. You've got a good game here and I really like it! Obviously, take your time, no pressure, and no rush. I WOULD reccomend binding a quick reset key to 'R' that resets the current room you're in just incase the game soft-locks for the time being.
I have a google drive folder with bugs 2, 3, 4, 6, and 7 in action to show you what I mean linked below if you're interested.
Once again, sorry for the giant wall of text, but I really hope this helps!
Link to the drive folder: https://drive.google.com/drive/folders/1xjBjX1SZ7aGPVBOSou733ldXxORPZE8O?usp=dri...