Worst mistake to ever make in the Pokémon world...

[kr9q]

Bring a dragon in the Pokemon world.
Take away Ash's hat.

[Gusparce]

Whatever you do... Dont make Brock open his eyes.

[Reshurott Inferno]

DON'T stomp on a Dunsparce. They will Glare at you 'till you can't move, then it'll Bite you to death.

[Richard & Sableye]

Asking Sableye if he can hold on to some gems for a sec

[Liam]

DON'T stomp on a Dunsparce. They will Glare at you 'till you can't move, then it'll Bite you to death.

Or headbutt you. Dunsparce are infamous for their excessive headbutting.

[kr9q]

Don't mistake a Voltorb for a Pokeball.
Don't take spoink's pearl.
Dont' mistake a Volbeat for a Illumise and vice versa.

[ZoroarkEX]

Climbing to the top of Mt Silver without a Pokemon higher than level 50. Its horrible.

did that I beat Red 

[OranBerrySandvich]

Never, under ANY circumstances, get involved in a debate over which legendary is best in a certain group. The argument will NEVER. END.
EVER.

[ZoroarkEX]

using brock has i guide, probly you will end up lost.
challenge brock to who can keep their eyes closed the longest.
buy pokemon white verision.

[Ledyba]

Bulding Gyms in areas in close promxity to pokemon that would demoloish your 'mon in type advantage.

i'm looking at you Clair/Lt Surge/Gardenia

[kr9q]

Never send a Snover into a Volcano. Yes. I'm looking at you, Kate/Kellyn. Why did the Snover enen have to be in the DAMN Volcano!

[Nightmare Eater]

Never, under ANY circumstances, get involved in a debate over which legendary is best in a certain group. The argument will NEVER. END.
EVER.

And let's not forget the infernal; "Blaziken is better! No, Infernape is better! Torterra breezed through everything! Samurott owns both Unova starters!"

[RioluRiku]

did that I beat Red 

pics vids or it didn't happen

[ZoroarkEX]

pics vids or it didn't happen

pics or vid, why?  try yourselves it's easy to beat him  , with his team in lv.50 some revive and smart thinking.
i didn't take a pic or vid because i thoght since i did it everybody can do it 

[Captain Jigglypuff]

Being a Nurse Joy or other attractive female in the presence of Brock!