Cool game and concept! As someone who's never played a typing game before, I feel like I managed to kinda brute force my way farther into the game than I probably should have by just picking all the damage upgrades and healing when necessary. (I was playing on Normal, and got as far as the guy with 1000 health whose text was something like "Look upon my perfection..." before I finally got overrun.)
I think my biggest problem with the difficulty of the game was that I couldn't really tell when I was supposed to dodge until I got hit. The tutorial made it look like I just had to wait for the enemy to complete its speech bubble, but in the real run, some enemies could hit multiple times per sentence, others would fake me out by delaying a word or punctuation mark, and yet others typed so fast that I basically had to dodge as soon as I saw the dialog box. So, it basically felt like I had to memorize every attack pattern, and that's obviously pretty hard in a roguelite with permadeath.
(That said, it's definitely accurate in some way to actual soulslikes, where some enemies attack super fast while others will delay their hits and fake you out. I guess it's just much harder to react to those things when you're just reading text, as opposed to looking at what the enemy is actually doing.)
I feel like the gameplay loop might have worked better for me if the dodging part was more like an actual soulslike, a.k.a. you dodge based on the enemy's attack animation (of course, that would require having attack animations). You already have two different types of text to pay attention to (bombs and your attacks), so I feel like taking away a third one would be fair, and there's already precedent of dodging ranged attacks based on the animation rather than words.
Also, I think the player's attack text being at the bottom of the screen also made things harder, since the bombs and enemy attacks are near the top of the screen. In the videos I've seen of other typing games, the attack text is usually on top of the enemy itself, so perhaps that might help a bit! The attack text having typos and non-words for some of the later enemies also felt kinda cheap. That said, I'm again not really a typing game expert, so I dunno what kind of difficulty is standard for those games!
Either way, I got farther in the game than I had expected, and had fun doing so despite not really being into this kind of game! Good job!