I watched an episode of Saiki at Crunchy and thought I'd have a look a little ahead... Went to YouTube, and.... Why was I not informed?!
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Apparently, Saiki was animated in "flash anime" before. It's basically like the original manga of One Punch Man. Upload dates are somewhere in 2013. And it's hilarious as all get out. I can't get enough of it!
I have to say though, the voicework is top notch. The so-called "flash" videos are supposed to be made by fans, but it's nothing like Little Karibou (with all due respect to the master). Sounds like they hired professional seiyuu.