After the December 16th, 1997 airing of Pocket Monsters Episode 038, "Cyber Soldier Porygon," OLM went back over the first 37 episodes of the TV series and re-edited them to reduce any strobe lights, flashing, quick background color changes, or any other special effects that even slightly resembled the types of images that sent all those children to the hospital during the "Pokémon Shock" incident. This was probably done both out of an abundance of caution as well as an attempt to show the public at large that OLM and every other party involved was taking the incident seriously.

Thankfully, the versions of Episodes 2 - 37 that the Japanese Hulu site has of the series are all the pre-Porygon edits, meaning it is now possible to do side-by-side comparisons of the changes made.  Below is a gallery of those changes. The 1997 original broadcast version is on the left while the 1998 re-edit is on the right.

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WARNING The animated gifs below contain rapidly flashing images that may potentially trigger seizures for people with visual sensitivities.. While there was never any issues reported when the "unedited" episodes originally aired in Japan back in 1997, and the gifs presented here are all kept at a small 300 x 225 pixel size, viewer discretion is still advised. If you are concerned about viewing such images then please navigate away from this page immediately. - Dogasu's Backpack

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Opening Theme

 
The show's logo animation is completely changed.


The Pokémon rapidly appearing one after the other is changed so that each name card only takes up a fourth of the screen.


The speed at which Satoshi throws the Monster Ball at the camera is reduced.


The intensity of the impact between these two bird Pokémon hitting each other is reduced.


Oddly enough, the post-Porygon episode edit of the episode actually adds movement that wasn't there originally. The production credits here are also re-typed.