so I found another glitch this one isn't very useful right now but it can save a bit of time on the class A guardian also I haven't tested it on every boss yet so it might be useful somewhere else. if you know how text storage works you should understand why this works. I also found out that you can pause at the same time you enter a room but that's probably useless. list of bosses that I have tested it on. scraping unit, security overmind, robbed statue, class A guardians, MYWA. video of glitch
edit: it actually does save time on MYWA I didn't realize that you could attack him before the fight started lol