ZUBAT ZUBAT ZUBAT!!!!!!!!!!!!!!!!!!!!!! they appear ever 5 steps and there cry is annoying and you cant stop them. that is why repels were invented. that is why i play my game with the sound off and that is why i AVOID caves all together.

Miltank was soooo hard. i usually will play the game with just my starter (i will have other pokemon with me to learn all the HMs but they are always low level) and my typhlosion dept dying because of that stupid rollout. it took forever and i finally beat that stupid milltank at lvl 45 and i started at lvl 40.

All of lances pokemon. they never die in one hit eeeever. lvl 55 mamoswine with ice beam brings it down to the red then he just heals. also karens umbreon is a pain. it also wont die in one hit.

The worst though is the stupid running pokemon. like cresselia or entei. its hard enough to run into them but to catch them is a whole other problem. first they are legendaries so they can be paralized alseep frozen and at .0000000009 damage and it will still take 30 ultra balls to catch them (i know to use dugtrio but the arena trap never works for some reason) but also you only get one chance till they run clear across the map and then you have to track them down again by going from town to town but then they move again and again and again till you just give up. this is why i dont use legendaries. they are to much of a pain to catch.

I'm have to say magic carp... cause well.. who does'nt it make mad? It was like impossible to get him high enough to evolve!!! grr! Stupid fish!

The legendary Pokemon that run, like raikou or mesprit or entei. Latios was actually was pretty easy. Easier to track and catch rate was much higher than the legendary dogs.

Zubat,and really and pokemon that is at level 3 or lower,Zubat came all the time in a cave
and unless you are at the start of the game

1deano1 : I know huh!! Gyrados intimidates you and it has hella high defenses and electric is the only effective type.

Koffing/Weezing, not only do they poison my pokemon but they also have they ability to self-destruct or explode. Now that really pisses me of to no end.

The pokemon that pissed me off the most was my own Noctowl. I had encountered a shiney Swinub and had my Noctowl use a pretty weak move, only to have it critical hit it and knock it out! I was so mad that I fainted my Noctowl and released it

The pokemon that pissed me off the most would be on Liquid Crystal, all the poison types cuz almost every time it shot sludge at me, i would be poisoned

Mine were
Quillfish (nicknamed: Annoyance)
Sudowoodo (nicknamed: Stubborn)
Noctowl (nicknamed: pkStubbornmn)
and Stantler (forgot nickname)

All took forever to catch and used all my balls

Others

Runners (Entei, ect.)
Zubats (because they are annoying)
Things that use Roar, Teleport or flee
Tentacool & Tentacruel (because they show up every time I surf)
Clare's Kingdra (because I always choose Cyndaquil as my starter)
Chuck's Poliwrath (same as above)
and Stantler (I just hate them)

Pokemon that pissed me off the most...I don't know, maybe Stantler?

Definetly Abra, Pikachu and Weedle. Abra could teleport wich made it almost immposible for you to hit it. When I caught my first Pikachu I thought it would be overpowered as in the Anime. But it turns out it became my weakest Poke'mon, even though I used it frequently. Weedle...is more personal....I always wanted to catch one....but the hitpoints are so low that a vine whip or tackle kills it in two shots.

I hate Pokemon that rose hes accurcy!!!

there was this maganium it used substitute the it kept using double team and then it used leech seed and it use grasswhistle AND it had leftovers

RATTATA and RATICATE! they're EVERYWHERE!!! It's SO ANNOYING! not only that, whenever I am facing those pokemon with my own, it will most likely use hyper fang of super fang. If it does that to me, I will be SO PISSED OFF that it'll take a year for me to get over it and continue to play the game.

In r/s/e its latios/latias.

Magikap. I mean come on it can only splash and tackle. AND it must be at least 10 levels over it's opponent before it get a chance of winning.

The One Pokemon that I absolutely despised the most, out of any Pokemon Game, Is Whitney's Miltank in Heatgold and SoulSilver. It would keep using Rollout on my Quilava which was super Effective, and then it would attract me. So whenever I had the chance to kill him he would either "magically" end his rollout and use Milk Drink, or I would couldn't attack it Cause I was in Love!

I've always hated Gabite and its evolutions. It just seems like a Flygon ripoff to me. I can't stand it.

I can't stand pokemon like Zubat who keep appearing it's so annoying sometimes I wish I can disable that thing or Machope they just keep appearing. And sometimes Zigzagoon, Wurmple, and Poochyena all at the starting of the game and sometimes pokemon you don't want even to know about why why why why why why why why is this always happening I hate it is soooo annoying.
Sometimes you wanna battle someone then "A wild pokemon appeared what will you do?".
Oh man it's so annoying I fell like smashing my pc sometimes.

i hated gengar, alakazam, machamp, and golem, because they are really powerful pokemon whose pre-evolution is easy to get, but you need to trade them for them to evolve. I didnt have friends who I cold trade them to evolve.

pikachu always pissed me off because they always thinks they are niece and cute but they are weak you can not deepend on them to win a battle.