Yee

Any eletric type from pokemon.

plot twist! it's Zoroark pretending to be that birb!

for me it would be that one lv 8 pipsqueak chilling by the notice board in Torigoth.

yeah, I've been replaying Xenoblade Chronicles 2 for like 40 times or so,and I still find satisfaction that I can just straight up one-shot anything with the sweet, godly power of custom difficulty. (I nerfed all the enemies and raised my best bits)

My first immediate thought was Bloody Marie from Skullgirls. Even on the easiest modes she was such a pain in the ass, and so much worse every other time. I know I'm not great at fighting games, but I really could only beat her with Fortune and Valentine (which where my best characters). It felt satisfying to beat her as anybody else, knowing I would never have to do so again (at least in boss fight form).
The final boss of AMR is also pretty satisfying. I remember being so terrified of dying at that point because I'd ran it through deathless (without counting times I fell...) and felt it was over. Nothing put a big smile on my face than getting through it.
I also like beating Lucina to a pulp in Smash, making sure I kill Tharja in FE: Awakening, and putting Yumi/Minori on the cross in Senran Kagura. No challenge or anything fun, I just like making them lose because I don't like them.

I always found satisfaction in beating up the 7th hell demons in DMC3 (The demons that look like the grim reaper)

Simply because they are easy to combo, don't have that much health and you find them a lot throughout the game.

Wow, this is so oddly specific, yet I fully agree with you. I love beating up on electrics.

unless your mains are flying and water type,then you're so damn screwed...type weakness is all the strategy you need to know when it comes to pokemon..electric type pokemons ain't got shit on you if you have any ground type pokemon or those that have the "lightning rod" ability

I should first mention that I'm not into Ryona at all. In fact, I find the implications behind the Ryona fetish to be a little disturbing.

But whenever there's an annoying/hateable female character that I find sexually attractive, I enjoy beating up on her.

Again, not to get my jollies off, but because it's more of a "take that, bitch!" kind of thing.