Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Ritalin! Stat!
Killua looks seriously overamped, a poster boy for ADHD. He'd certainly end up a heavily medicated man here in the better-living-by-pharmacology US of A!
 
Added: 5/22/02 From: Anime Chaos
 
Ritalin! Stat!