Enemies with shields in first person shooters. You know the type: Jackals, Riot Shielders, Juggernauts, Reinhardt to a lesser extent, anyone who can sit behind a shield and tank damage. It’s not that it’s impossible or even particularly hard to deal with, but it really breaks the flow.
Escorts. I don’t need to elaborate. It can be done well, but 99% of the time it’s unbearable.
I’m going to expand on @anon39655210 's point on certain kinds of characters in fighting games, because they’ve got most of my ■■■■■■■■ down:
-Anyone who’s like “Hey that was a good fight! Let’s do it again~”
-Normal, boring every day characters. In a genre filled with cyborgs, monsters, aliens, superhumans, and various colors of ninja, why would I want to play as Some Guy? Games like SF, MK, and especially KI have found ways to take otherwise regular everyday archetypes like “boxer” or “martial arts champ” and at least put some fun spins on the idea, but Dead or Alive and Tekken are just fillled with it.
Thinking about it, just put “The Casts of DoA and Tekken” on my list of annoying characters. A huge chunk of those games just falls under “dude/chick that hits stuff” that shows up in street clothes and giggles or talks about how they have to try their best.
-Double ■■■■ the “I have to do this!” , “I’ll try my best!” , and “Everyone is counting on me!” characters. From Phyrah to Rebooted Laura Croft to Other M and every anime protagonist after 2005. This just bothers me.
This applies to games and movies: The “I’m the hero, but I’m going to be a total ■■■■■■■■ and create a bunch of frustrations and misunderstandings for no other purpose than to prolong the plot, only to pull a 180 when someone does a bad thing and save the day and be universally loved by everyone” plot. No thanks.
And finally, the holy grail of bad: AI partners that actively make it harder to complete your goal. Standing in doorways, setting of traps, looting ammo and weapons (that they have an infinite supply of but you do not), refusing to catch up to you moving at anything faster than a brisk walk, and then having the nerve to complain when I club them over the head for their insolence.