This is gonna be a pretty rough written idea due to writing this at work and it's unlikely to happen, but one thing I hope happens in the Galaxy movie is that Mario sacrifices himself to protect Luigi from one of Bowser Jr's (or Bowser's) attacks. Jr (or Bowser) is genuinely surprised for a moment they succeeded in killing Mario, but then do their evil laugh afterwards. All the background noise suddenly muffles out and it's just focused on Luigi holding his lifeless brother's body in his arms, crying and choking on his words
Luigi "Mario, wake up! C'mon man, this isn't funny! Please, wake up... I can't, I can't do this alone. I need you bro..."
Peach is away from the Bros fighting enemies with Toad and Yoshi and senses something off immediately as she looks in the direction of where the Bros would be. She makes her way over there as quick as she can without saying a word to Toad and Yoshi saying quietly to herself "Please be okay, Mario..."
Since I'm at work and this would all take a bit much, I'mma fast forward to when Mario is brought back to life with the 1-Up Mushroom. Luigi and Peach are overjoyed with tears in their eyes, and Mario does the most Mario thing next. HE apologizes to Luigi, which has Luigi so confused "Why are YOU sorry?!"
Mario "I'm sorry for leaving you like that..." (I'm sorry for dying and leaving you alone for even just a moment)
Mario would absolutely blame himself for not surviving that attack and leaving Luigi all alone, even if only for a short while.
Okay, I would type more, but I'm at work, so yeee🤭









