This... sure was one of the games that exists. I don't really know how to comment on or review this...
I'll start by saying that cheese duck is busted since it IGNORES ALL WALLS. You can skip the entire level through the power of cheese duck (unless there's water in the way), and there's really no reason to play the levels and fight the enemies since they don't drop anything. Other glitches (?) include being able to move during the dialogue before some (but not all) bosses, and keys... seemingly not doing anything, and the frog suit's magnetism not actually being able to be used. But all that can be ignored because basically every level is ignorable with the cheese duck.
There are other, non-glitch gameplay problems. First and foremost, the movement is WAY to stiff; only four directions of movement and forced pausing when attacking are quite annoying, especially considering how hard it can be to judge the hitbox of your sword and the enemies. I've died from walking into enemies that I tried to get close enough to attack. It would be much better if there was multidirectional movement and any sort of movement during the sword attack, which should probably have a larger sprite and hitbox.
I wish that you could move faster in the overworld.
Speaking of fast movement, the dash was rather disappointing. When I see a game with the word "SOULS" in the title, and see that there's a dash, I'm primed to expect that it will have I-frames, like dodge rolls in the Soulsborne games. And I'm assuming that those games were inspiration for this one, judging from the description talking about a dying world and all that classic Dark Souls stuff. But the dash in this game... doesn't have I-frames, as far as I can tell, and its utility for fast movement is made redundant very quickly by the cheese duck.
The dialogue when talking to NPCs is oddly small and often hard to see, and the cutscene dialogue, while larger and easier to see in that regard, is quite blurry.
Still, I did give this game at least two stars, and that's largely due to the writing. While not super complex, it did get genuine chuckles out of me. From inexplicably racist frogs to chess pieces with hair to sudden whale, it's quite absurdist, but I quite liked that (though again, I would have liked it more if the text was easier to read).
Seriously though those frogs were dropping slurs.