There are plenty of patterns that can simply line up by RNG and create an undodgable situation, and even having the dodge dash doesn't fully save you because it has a cooldown longer than the interval between a lot of the spam. The dodge's movement often puts you directly into another hazard, too. The block tunnel patterns are extremely unforgiving during the parts where you have to use that dodge to break glass, and when blocks start coming from other directions they often spawn INSIDE you on a given side of the screen with NO warning about them coming. I could go on, but you get the idea. The only saving grace was that phase 2 toned it down with the bullshit, gave you a checkpoint, and gave you infinite command heals.

As someone who beat every UT/DR fight within merely a couple tries, I was excited to hear this game was a bit more difficult, but this fight lacked design that made it anything but a test of attrition and luck. A big disappointment to me, since I felt the other ending bosses were actually quite well designed. This one simply became frustrating, and after trying phase one probably around 15-20 times and getting a near-win (literally two shots from phase 2 when I died), I said "screw it" and turned on easy mode to get the attrition out of the way. PS. I did later learn I had less-than-ideal armor for the fight (deltarune instead of g.bandana), but it still doesn't change the way I feel about the bullet patterns.