Bankara's out. I'll just post my impression here since I don't think it's worth it to create a thread for a one shot. Besides, it's not like the Gintama thread is very active anyway, this might bring some life into it...
Spoiler for Bankara-san ga tooru!:
That was... awesome! I'm not worried about Sorachi's future as a mangaka, I'm sure he'll be able to come up with another awesome manga after Gintama, this one shot proves it.
I loved the main female lead, she was like a mix of Tsukuyo and Kagura. The other two characters were totally Gintoki and Shinpachi clones but I didn't mind it. The story was as crazy as one would expect from Sorachi: the most evil bancho of all time was sentenced to spend all eternity standing in the hall, he is set free 150 years later in a world where cyberization is common and Cyber-punks are ruling schools with their iron fists (literally). The jokes were hilarious (the sexual innuendo at the beginning
) and the obligatory Gundam and Dragon Quest references were there.
I wouldn't mind seeing this serialized in a few years. It's got a lot of potential.