I'm sure we all have a game that we run or ran that we absolute hate. Tell me what game you absolutely hate running. Now be sure that you give a game that you actually ran and not one that you just /think/ is a bad speedrun without having any experience running it. Also tell me why you didn't like running it.
Of any game I've ever done a run of, my least favorite would have to be Spyro Enter The Dragonfly. Now it had nothing to do with the game itself but more its controls. I just couldn't get a hang of them. Well also the any% is way too short. I'm not a fan of short runs.
For me it's actually Enter The Dragonfly as well. Even though I didn't do any real runs of it yet, I still hate the game lol. Controls, graphics, gameplay are awful. It's just that it sounds fun to make a 1 minute run haha.
Rocky and Bullwinkle. Learned it because I thought I could join the big 20 3 and god the game was torture. The mechanics are dumb (losing health using special ability), level design is lame, enimies are almost impossible to avoid, and music is ear-rapping.
Scooby doo and the cyber chase. The levels are uninspired. The platforming is repetitive and nauseating. It's a game you just wish was over as soon as possible. Oh and don't even get me started on the last boss. It is one of the most cheapest final bosses in a game I've ever played. There is no fun to be had in the entire game.The whole game is damn near torture and I suggest you stay as far away from it as humanly possible.
Urban Chaos: Riot Response I picked it up (as the once runner) because i played it when I was younger, so I wanted to give it some attempts. Couldn't find any bugs/glitches or anything, so you got to play the game normally. The problem is, it's bad. Weird controls, really annoying enemies and stupid scripts which trigger way to late or only when you do certain stuff you run past by, so it forces you to go slow -_- Also, horrible checkpoints, if there're any. There're parts in the Game where you play 15min long and then you die to some random stuff or because u dont have ammo anymore and you got to do all 15min again. Juuust great
Crash Bash. Made me want to gouge my eyes out with a fork. Even playing it casually is horrible.
Counterspy: Game dictated by RNG, No custom seeds, Possibility of softlock at the beginning of every level, Hard to play fast.
I've done a meme run of Teddy Floppy Ear: The Race, even though I'm not sure if you could call it a speedrun. The game is pretty fun to play though, despite being terrible.
RPG games in general from my gaming experience, just because of luck involved rather than actual skills of playing :(
NES Rambo. I even figured out how the mechanics of the final boss skip work and came up with a reliable setup for it.