Cowboy Bebop - Season 1 Episode 13 Asteroid Blues See you space cowboy...
Overview: Spike and Jet head to Tijuana to track down an outlaw smuggling a dangerous drug known as blood-eye. Jet wants the bounty, but Spike has eyes for a far prettier prize.
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One of the greatest anime of all time, which even 20 years later hasn't been challenged yet. Dynamic animation, excellent music (just watch the intro) & "ok" sound effects, interesting story, fantastic characters, etc... - I love it :) (if you like this you might want to have a look as well at "Samurai Champloo")