Top 10 Hardest Pokemon Battles in Pokemon Games

Ghetsis (Pokémon Black and White)

Ghetsis Harmonia Gropius, commonly referred to as Ghetsis, is the primary antagonist in Pokémon Black, White, Black 2, and White 2. He is one of the Seven Sages of Team Plasma and the secret mastermind behind the organization's plans to liberate Pokémon from their trainers. Ghetsis is also the adoptive... read more

To be honest, I thought Cynthia from the previous generation was a lot harder. However, the final boss of Pokémon Black and White's main story easily takes the cake.
Using a team of Samurott, Zebstrika, Reshiram, Unfezant, Vanilluxe, and Krookodile, I beat him when my team was almost wiped out, and my Samurott was hanging by a thread.
Other than that, Ghetsis in general had a very creepy and foreboding presence throughout the story, which is very fitting for the leader of a fanatical pseudo-monarchist cult. His difficulty is right up there with the Unova region's intimidating Elite Four. The Elite Four congratulate you on beating them, but Ghetsis throws a temper tantrum after you defeat him.
Lysandre from X&Y tries to replicate his fearsome personality, but it mostly fails in comparison.

Cynthia (Pokémon Diamond, Pearl, Platinum, Brilliant Diamond, and Shining Pearl)

I agree. I had many tries to beat her, and I failed multiple times. Luckily, I noticed I had a TM that I used on Empoleon, and that was Ice Beam. I guess water types really do help you win and progress through the game.

You better have a good team composition. At least all Pokemon should be level 65-70, and pray she doesn't use all of her Max Potions on her damn Garchomp.
Have fun with that Milotic... One of the hardest champions and trainers of all time, with a decent moveset for an NPC.

It took me half an hour to beat her. She is the most difficult champion I have ever faced, but also the best.

Ultra Necrozma (Pokémon Ultra Sun and Ultra Moon)

The only 7 ways to probably defeat it:
1. FEAR Pokemon. Just google it, it basically means cheating in competitive.
2. Zoroark strategy, where it disguises as a fighting type.
3. Focus Sash something as it uses a powerful move.
4. Focus Sash, then Mirror Coat.
5. Focus Sash, then Destiny Bond.
6. Be overleveled.
7. Have an Aegislash and check out this Poketuber named aDrive. He beat the crap out of Necrozma, and we laughed and cried watching how easy he made it look.

1. He's level 60. Your team will probably be level 38-50.
2. All his moves do more than 100 damage.
3. Even with Graveler or Incineroar, he'll find a one-shot or super-effective move.
4. Photon Geyser.
5. YOU can't CATCH HIM.
I honestly only beat him because of my event shiny Dialga.

Greevil (Pokémon XD: Gale of Darkness)

Greevil is, without a doubt, the hardest battle in Pokemon history. His entire team consists of Shadow Pokemon. Good luck, because you're going to need it!

This guy deserves to be number one! I really like this battle, but it is without a doubt the hardest battle in all of Pokemon!

Good luck catching three legendary Pokémon in one go.

Professor Kukui (Pokémon Sun and Moon)

Professor Kukui is a fictional character introduced in Pokémon Sun and Moon. He is the Pokémon Professor of the Alola region and specializes in the study of Pokémon moves. Kukui also establishes the Alola Pokémon League and challenges the player as the final opponent in Pokémon Sun and Moon.

He's got a powerful team, and it took me multiple tries to beat him. And for those who say he's easy for a champion, he isn't even a champion! He's just a normal professor who thinks it's too easy to just beat the Elite Four.
I beat the rest of the Elite Four on my first try, but I had to redo Kukui like 3-6 times!

Kukui isn't as hard as everybody claims, but he ain't a pushover, that's for sure, lol.
Also, am I the only one who experiences this: he only uses Full Restore once or twice throughout the entire battle. Then he sends out his final Pokemon, Magnezone, and spams the crap out of healing items.

Trainer Red (Pokémon Gold, Silver, Crystal, HeartGold, SoulSilver, Sun, and Moon)

I was in the lower seventies but still managed. His sets were terrible. I would have curbstomped him had it not been for the level difference, to be honest. I only barely won because of the level difference in my opinion.

Evice (Pokémon Colosseum)

Anabel (Pokémon Emerald and Pokémon Sun and Moon)

Build a team just for this or spam healing items like crazy. And oh yeah, save before you fight her.

Kecleon (Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team)

This thing is almost invincible to any of my Pokemon. Just screw Kecleon. Can't they just make it so that if you have no money and try to take an item from Kecleon shops, he gives it to you for free?
Then again, this thing is simply one word: UNFAIR!

It's like the shopkeepers from The Legend of Zelda: Link's Awakening. You steal from them, and they murder you. Justice prevails, I guess.

Pokemon's version of the fight with Sans the Skeleton. Get dunked on!

Hapu (Pokémon Sun and Moon)

Her dang Mudsdale and its Stamina ability. Also, High Horsepower.

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Volo (Pokémon Legends: Arceus)

I tried this with a level 70 team and still lost to him twice on my second account.
On my first account, I had to try twenty times to beat the first phase of Giratina. And I didn't know there was a second phase. I ended up packing like twenty Max Revives before finally beating him.

Having to battle a 6 vs 8, with or without prep, is brutal, and you'll probably get knocked down. Not only do you face Cynthia's Platinum team (excluding Milotic), but you also have to battle two forms of Giratina. Some of your Pokemon might not even get a turn due to the battle system.

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Primal Dialga (Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky)

Whitney (Pokémon Gold, Silver, Crystal, HeartGold, and SoulSilver)

This fight isn't even hard, bro. I beat Whitney on my first try without any healing items, using only a Quagsire.

Lusamine (Pokémon Sun and Moon)

Lusamine is introduced in Pokémon Sun and Pokémon Moon as the president of the Aether Foundation, an organization focused on the care and protection of Pokémon. She plays a central role in the storyline and becomes the main antagonist due to her obsession with Ultra Beasts, particularly Nihilego.... read more

God, her Mother Beast form is overpowered! I wasn't able to take down that Clefable until it used Metronome and got Self-Destruct on itself! But it was kind of funny when that Self-Destruct missed my Alolan Raichu due to the bonds I've built with it as a Trainer.

That Clefable though... I get mad just thinking about it.
I'm going to use a Clefable with the same moveset as Lusamine's against my brother just to piss him off. He'll hate me for it, but it'll be worth it.
Also, Cosmic Power is officially my least favorite move. And did I mention my luck is bad? So when it used Metronome, you can imagine how well I took it.

Eldes (Pokémon XD: Gale of Darkness)

Totem Mimikyu (Pokémon Sun and Moon)

Aside from Mimikyu being hard to take down, I find it hilarious that people used their Z-move on the first turn to try and one-shot it, only to realize that Mimikyu has the Disguise ability.

Sadly, I was dumb enough to use my Z-move on the first turn. Still beat it on my first try though. Seriously? How is this even hard?

Ardos (Pokémon XD: Gale of Darkness)

Lucian (Pokémon Diamond, Pearl, and Platinum)

Hardest Elite Four member to ever exist, in my opinion. Period.

Clair (Pokémon Gold, Silver, Crystal, HeartGold, and SoulSilver)

Clair is the Gym Leader of Blackthorn Gym in the Pokémon games Pokémon Gold and Silver. She specializes in Dragon-type Pokémon and is notable for using a powerful Kingdra as her signature Pokémon. Clair is also Lance's cousin and appears in later Pokémon titles and media.

You want to hear my hatred for this battle in one single word? "Kingdra."

She makes Whitney look like a piece of cake by comparison.

Norman (Pokémon Emerald)

That Slaking. Oh my gosh, that Slaking.

May (Pokémon Ruby and Sapphire)

May is a female companion to Ash in the Generation III Pokémon anime series. She is also the playable female character in Pokémon Ruby, Sapphire, Emerald, Omega Ruby, and Alpha Sapphire. May debuted in the anime in the 275th episode, "Get the Show on the Road!"... read more

Ugh, I had to lose to her, even after trying so hard to defeat her! I tried! Not counting the 3DS remake (because she's easier to beat, which I LIKE!). I hate her a LOT for several reasons! Oh well.

Juan (Pokémon Emerald)

His Kingdra is even worse than Clair's!

Lenora (Pokémon Black and White)

Steven (Pokémon Ruby, Sapphire, and Emerald)

I did find difficulty with him in ORAS, to be honest. But in Emerald, he was insanely hard though, lol. Never played the original Ruby and Sapphire though, lol.

Harder in the remakes because his Metagross can Mega Evolve.

Lance (Pokémon Gold, Silver, Crystal, HeartGold, and SoulSilver)

Lance is only hard if you are new to Pokemon and are not sure what you are doing, which was the case for a lot of kids back in Gen 2 when it was still new. With experience, his difficulty is lacking.

Lt. Surge (Pokémon FireRed and LeafGreen)

Lt. Surge is a fictional character in the Pokémon series and the Gym Leader of Vermilion City who specializes in Electric-type Pokémon. In the anime, he is portrayed as arrogant and aggressive, often belittling other trainers. His main Pokémon is Raichu, which he evolved from a Pikachu immediately... read more