How did you make it past the first gym in yellow?

[Roserazor]

In Pokemon Yellow, you are forced to have Pikachu as your starter. Unfortunately, the first gym is all Rock/Ground types, and Electric doesn't effect ground (not to mention that Ground is also super effective on Electric). So what did you do to get past Brock in Yellow version?

-Roserazor

EDIT: And thank you all so much for making this the biggest non-Sticky thread in the Red/Green/Blue/Yellow Discussion!
EDIT: As of May 27th, 2012, this thread received its 300th post! Thanks for all the comments everybody!

[Ursaman]

I caught a caterpie, evolved it into a butterfree, and taught it psychic. That was pretty much my only hope.

[Ultimate Glalie]

I caught a Nidoran and trained it until it learned Double Kick, then used it against him.

[Count Zubat]

I caught a Nidoran and trained it until it learned Double Kick, then used it against him.

Pretty much this

[Disaster9200]

I caught a Nidoran and trained it until it learned Double Kick, then used it against him.

^^ That. ^^

[Shinies]

I caught a Nidoran and trained it until it learned Double Kick, then used it against him.

I did this .

[tom-tom]

In pokemon yellow, you are forced to have pikachu as your starter. Unfortunately, the first gym is all rock type and electric is weak on rock. So what did you do to get past Brock?

-Roserazor

Unfortunately Electric isn't weak on Rock, it doesn't affect Ground which Onix and Geodude are.

[Snoozing_Snorlax]

I was dumb and as i remember i trained my pikachu to like level 20 it took like a week considering i only had level 3 pidgeys to kill and then i challenged Brock and i used tackle throughout the whole battle i should have caught a caterpie to evolve into a butterfree.

[ForteAnly]

I caught a Mankey in Route 22 at level 3 I think so that help in defeating Brock.

[Ciccone]

I hated Yellow because of the hurdle in the first Gym. I remember fighting Brock with Pikachu, Butterfree, and Pidgey but losing since nothing I used really made a difference. I decided to just trade over a level 10 Poliwag from my friends Blue version and I beat Brock using that type advantage. I used to hate training so I never really tried to beat him on my own

[Ya ok]

I caught a female Nidoran and just kept using it and Pikachu until I FINALLY beat him.

It took forever. :/

[Kurupon]

I remember taking ages to even kill the Geodude and by the time Onix came I only had a Pidgey of lvl 5 left or something.

I just trained my Pikachu to lvl 11 and used quick attack all time.

[Kojinka]

The easiest way to beat Brock in Yellow is to catch a Mankey in Route 22 and train it till it learns one of its fighting moves.

[TheBatman]

The easiest way to beat Brock in Yellow is to catch a Mankey in Route 22 and train it till it learns one of its fighting moves.

This. Mankey beats Brock pretty easily.

[redcharzard]

butterfee with confusion if i remember correctly took forever.

[foxyman1167]

Butterfree. Such a simple solution, although it was a ***** to train to evolve fully.

[Supa Cheesy]

The first time I played:
After stocking up on a few potions (as many as i could afford), I had a lv 16 Pikachu, and lv 9 Pidgey, and a lv 7 Metapod.
Sent in metapod for geodude, spammed harden, then spammed tackle. The metapod died.
Next, spammed pidgey's gust. After a few potions, the geodude died.
Brock sent out his Onix, I spammed sand attack, which was quite helpful. The Onix missed quite a few times, but that led to my Pidgey's death.
Sent out my Pikachu, after using nearly all of my potions, it finally died from a quick attack. That took forever. ButIwas like, 4 at that time

[Fish-killer]

caught a nidoran, taught it double kick, and laughed my way through the gym.

[Skull-Kid]

I caught a Caterpie and trained it to a Butterfree. I also trained a Nidoran-M and taught it Double Kick. Nidoran-M was mostly backup.

[deoxysdude94]

Mankey with low kick or one of the nidorans with double kick.