Has anyone seen the references to the series there are in anime? There are quite a few.

There's the one in Haruhi Suzumiya, which would be the most famous: http://www.youtube.com/watch?v=L_7s3_VDdfk
Another in Panty and Stocking with Garterbelt: http://www.youtube.com/watch?v=Es-UAZBD88o
There's an Apollo Justice reference in Lucky Star: http://www.youtube.com/watch?v=s-ersJZur_U

I hadn't thought there would be even one. Does anyone know if there are any others, in games or anime?

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I'm not sure if this is intentional, but there's a scene in Steins;Gate were Okabe yells "Objection!" in a very similar manner to Phoenix Wright.
https://www.youtube.com/watch?v=918Rt8bz2G4
The line comes in at around 30 seconds in.

Well, there was a parody episode in Gintama:
http://youtu.be/_A5fGufFWCI

Gosh darn you, TopHat! I can't get that video in my country. XD Then again, I've already watched S;G.

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There's an episode of Keroro Gunsou (Sgt. Frog) where they visit a barbers. Is it just me or does the guy on the poster at 16:31 look a lot like Phoenix Wright? http://www.youtube.com/watch?v=hrjLI68RuIM

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