I had to give this two tries, because the first go-around I was in a time crunch and didn't feel I gave it a fair enough shot, and I'm glad I did! This is a very fun game, and I definitely like its take on the genre of a bullet hell. The graphics are super cute, and I love the emotes in the speech bubbles. The food names as the animal names are just silly, and make me smile.
The music choice is really nice, and I appreciate that it doesn't start at maximum volume when you first join. That's always a bonus, since you never know what someone's setup is like, or their hearing level (I personally have fairly sensitive ears).
There being Twitch integration absolutely surprised me, and was a welcome thing! I did try setting it up, but I'm not sure how exactly it functions so it didn't get used. Definitely some instructions on what chat can do within the game itself for the streamer to reference would be good in that regard.
I'd like to see more checkpoints in the game. I know you mentioned that you get one at the end of each major level, but for the sake of not repeating yourself too-often while learning how a bullet hell works (or learning which weapons are best), having the option to either restart the whole level or start again where one last left off in a level before dying would be nice. It's also nice to have in case someone has to get up for a while due to other obligations, but doesn't want to lose their progress.
From what I can tell, mouse and keyboard needs more work. Controller works great, but my initial attempt with mouse and keyboard didn't go so well.
Spore mechanics need better explanation on how to trigger them. I understand matching colors gets bonus damage on certain dinos, but I couldn't figure out how you actually swapped/triggered spores for your character. I'd also recommend a colorblind mode where the letter for the color is above the mushrooms and above the dinos so that it's more accessible overall.
Finally, I felt there was too much dialog. This could be because it seemed like the test branch started well into the game itself, but it might also be because there are just so many characters. Personally, I'm not a big fan of too much dialog in a game that isn't primarily a story genre game. So having it be more obvious what dialog is necessary, and what's accessory, would help cut-down on that some.
Overall it's a really fun game though, and I've wishlisted it on Steam. I wish you the best of luck debugging that one crash spot!
My VOD with your game bookmarked for a timestamp is here: