These 5 Pokemon are officially FireRed and LeafGreen's worst

Pokemon FireRed and LeafGreen technically include all Pokemon from Gen 1 to Gen 3, but most of them are post-game finds or not even available in-game until Ruby, Sapphire, and potentially Emerald come to Switch and Switch 2. This means that for most of your time playing Pokemon FireRed and LeafGreenyou'll be stuck with the Kanto Pokedex, for better or for worse. You can't evolve Golbat into Crobat and Chansey into Blissey until you get National Dex, and you can't even get Mewtwo until much later in your adventure. Not all Kanto Pokemon are great, despite their iconic status, but some of them are actually terrible in the Gen 3 remake.

There are a few reasons why this is so. To begin with, Pokemon FireRed and LeafGreenThe type chart follows the Gen 3 rule of each type dealing either physical or special damage, rather than the breakdown by move that came with later games. This means that some Pokemon are much better or worse in FireRed and LeafGreen than they would normally be. On top of that, some animals have very limited learning sets and stats that don't go well with them, ending up as some of the worst Pokemon to use. Five of these are arguably the worst of the bunch, and you shouldn't use them unless they're your favorites, or if you're trying to challenge yourself.

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Strongest Pokémon in FireRed & LeafGreen (and where to find them)

Want to find the strongest Pokemon in FireRed & LeafGreen? Here is a list of the most powerful species in the game.

Say hello to The 5 Worst Pokemon in FireRed and LeafGreen

The worst Pokemon in Fire red and leaf green are not necessarily the ones with the worst stats. In fact, Gyarados isn't good because it doesn't learn any flying moves, and water is a special type, meaning it can't use its high attack to its best advantage. However, there are some Pokemon that are just not good in the Kanto remakes, and they are:

Onyx
Lickitung
Seaking
Ditto
Porygon

Who is that character?

Identify the silhouettes before time runs out.

Who is that character?

Identify the silhouettes before time runs out.

Easy (7.5s) Medium (5.0s) Hard (2.5s) Permadeath (2.5s)

Why you shouldn't use Onix in Pokemon FireRed and LeafGreen

Onix is a bit of a ridiculous Pokemon, as the anime portrays it as a powerful animal, but the games make it pretty clear that's not the case. A look at Onix's BST will make this clear:

HP: 35
Attack: 45
Defense: 160
Sp. Atk: 30
Sp. Def: 45
Speed: 70

The problem is that Onix does practically no damage, even if you teach it Earthquake after hitting Giovanni in Pokemon FireRed and LeafGreen's Viridian City Gym, as it has a base Attack stat of only 45. It learns some good moves, like Iron Tail, Double-Edge, and Rock Slide, but it's ultimately a weak Pokemon that can go down relatively easily if hit with a special attack.

Why you shouldn't use Lickitung in Pokemon FireRed and LeafGreen

Lickitung is an exclusive Pokémon in Fire red and leaf greenbecause you can't catch it anywhere, even after the match. To get it, you need to trade away a Golduck (Fire red) or Slowbro (Leafy green), which in itself is not amazing. To make matters worse, Lickitung has a terrible speed of only 30, meaning it will be outmatched most of the time, and its attack stats aren't great either (55 Attack and 60 Sp. Atk). It's vaguely bulky, but it's hard to vouch for Lickitung when Snorlax is around, and it's easier to get on top of being better overall.

Lickitung's best STAB moves are Stomp and Slam, with the former having a base power of 65 and the latter having a base power of 80 but an accuracy of 75.
You can teach Mega Kick or Mega Punch to Lickitung to slightly improve his attacks, but neither is great.
It learns a lot of good moves via TMs, but they are always best used on other Pokémon.

Why you shouldn't use Seaking in Pokemon FireRed and LeafGreen

Another picture of Goldene from Pokemon-1

One of the few Kanto Pokémon without gimmicks, Seaking is arguably one of the worst overall, and not just in FireRed and LeafGreen. Its biggest problem is that its stats are average across the board, and its best stat is Attack at 92, but it can't use it much because water is a special type in these games. It doesn't help that all the other water-type Pokemon are coming in Fire red and leaf green is better than Seaking:

Blastoise is tanky and has a better learning set, with higher base Special Attack to make it easier to use Surf or Ice Beam.
Golduck is faster and has much higher Special Attack, also with a good ability.
Poliwrath's Fighting type makes it better at dealing with Lorelei of Pokemon FireRed and LeafGreenElite Four, and it also has better stats.
Tentacruel has great special defense and speed, as well as better moves.
Slowbro is slow, but it's very tanky, and it has better offensive stats.
Dewgong and Cloyster have Ice STAB moves for more damage with Ice Beam.
Kingler is in a similar position to Seaking, but at least it has a much higher base Attack for physical moves.
Seadra is faster and has more offensive power, and it also evolves after the match.
Starmie is one of the best Pokemon in the Fire red and leaf green and can solo Elite Four.
Gyarados has Intimidate and better coverage.
Lapras is one of the best water-type Pokemon in the game with better moves, and it learns Thunderbolt.
Vaporeon has amazing stats and attacks.
Omanyte and Kabutops have similar problems to Seaking, but they have superior stats.

Why you shouldn't use ditto in Pokemon FireRed and LeafGreen

Although Ditto in Pokopia is more than a main character, but it is very much a side Pokemon in Gen 3 Kanto games. The main reasons are:

Imposter is a Gen 5 ability, meaning you have to manually transform Ditto by “wasting” a turn to use Transform.
Ditto retains its 48 bash even when transformed, meaning it's very likely it won't survive long.
Ditto's base speed of 48 means it most likely won't go first, meaning it has to take damage in its base form before transforming, possibly OHKOed.

Why you shouldn't use Porygon in Pokemon FireRed and LeafGreen

Pokemon Anime Porygon Electric Soldier Pokemon

Last but not least, Porygon is subpar at best in Gen 3 Kanto games. This is because Normal is a physical type and Porygon is a special attacker, but also because Porygon has a very low speed of 40, with average stats overall.

Despite learning Recover, the biggest problems for Porygon are:

It cannot evolve into Porygon2 until after the match.
Its Tri Attack deals physical damage, making Dodrio the best user of this move.
Shadow Ball and Hyper Beam only deal physical damage.
Conversion and Conversion 2 are mediocre moves at best, as they require setups for possibly little or no benefit, depending on the fight.