Comment things and I'll tell you what they do, from dealing damage normally or boosting everyone's damage, to turning into TOAST by doing something stupid (you died lol). EMOTIONS apply to OMORI here (ANGRY, AFRAID, etc), and OMORI doesn't succumb to you trying to one-shot him.
Good luck lol 10k health means that people will have to comment a LOT to beat him. So have fun trying to win. The stats next to OMORI are his current stats. Check them if you want to use some kind of strategy with EMOTIONS or just want to see how close he is to losing.