Pokémon light platinum is a Pokémon Ruby rom hack. You can find more information about it here: http://wesleyfg.weebly.com/pokeacutemonlightplatinum.html
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https://www.youtube.com/watch?v=U6o-Xj-mvmA
having to rerecord this video twice because of static actually helped in a way.
if you want to play this game you can find it here:
http://www.smwcentral.net/?p=showhack&id=4635
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https://www.youtube.com/watch?v=C2r9EW7rWlM