So... Contrary to a couple of comments I've seen, I don't think it's necessary to remake this section of the game again since it has a pretty fun concept. Although, it would definitely need a couple of adjustments so as not to frustrate the players more than necessary (I know that is one of the objectives of bullet hells but knowing that we are mainly playing a mystery and investigation game where many people are not used to to this genre...)

So; What could we do to make this part of the game less frustrating?

First, assuming that all the culprits are going to have a similar first phase to each other, i think there is no need to change anything

In the second phase the biggest problem I found is the super attack that Eva launches, it has very little or almost no space to pass between the bullets, forcing you to take damage. My idea is simply to increase the space between the bullets, the other attacks are fine and it is just a matter of learning them.

In the third phase it is more of the same, just increasing the spaces between the bullets would be enough.

Miscellaneous ideas:

1. Maybe nerfing a bit the bosses healt 
2. Adjust the character's movement speed (By briefly pressing a key to move, the character advances further than desired)
3. Adjust the character's hitbox to make it a little more forgiving

(And just to inform you, there is a bug which, when spending the entire concentration bar, does not regenerate over time)

I LOVED this first chapter and i am really excited how is going to develop the second one, keep the good work!

Hello,

the team know of the many bugs affecting the Argument Altercation (the speed issue you mentioned is actually a bug that has caused no end of trouble to players on lower end devices). They have been taking note on the issues (both technical and gameplay-related) regarding the Argument Altercation and plan to rework it especially in regard to its difficulty.

While I personally dislike the Argument Altercation as a concept (because I feel it meshes poorly with the rest of the gameplay), I am pretty confident it is not going away. In regards to improving it, I do agree with many of your suggestions, as well with your considerations on its collocation inside a murder mystery visual novel, although I think the matter goes beyond players possibly not being familiar with the genre. Maybe the point of a bullet hell is to try the level again and again until you beat it, but to have it as a minigame at the end with the level of difficulty it presents is jarring (because up to that point the action minigames have been both very different and pretty trivial even on the hardest difficulty) and it grinds the pacing to a halt at the climax of the trial (which is exactly what minigames like the P.T.A. have long been criticised for in Danganronpa). Whereas in order to improve in a bullet hell you have to keep playing the game, in order to improve in the Argument Altercation you have to, in a way, stop playing the game you were playing and switch to a different game for even as much as 20 or 30 minutes, which in my opinion is what makes it particularly frustrating.

In regards to the boss's health, I think it is fine as it is, because moving to the next phase after less than three hits would feel weird. Instead, I think Damon's health should be buffed. Did you know that there is a healing mechanic? You would be forgiven for not noticing, because it is both completely unexplained and extremely weak, only healing 1 HP every time you tear down the boss's shield. I think this could be increased to higher amounts for lower difficulties (and maybe even for higher difficulties, if one wants to encourage riskier plays).

I am not sure how often the developers come here to read the comments, so I would suggest posting your criticism on the official Discord server (in the #eg-staff-questions channel, tagged as Gameplay Feedback) where they are more likely to see it.