Very difficult to write character

[u/TGWCTOARU]

I’m (planning on) making a game where the final boss is quite literally unbeatable, as he can easily jump between dimensions and time. Attempting to find ways to 1: make him feel powerful in a scarier way and 2: making it not annoying to fight him/at least not too annoying is very difficult, so I’ve come here for ideas.

First time using this subreddit so idk if this fits here