SACRAMENTO (CBS13) – Thousands of fans aren’t waiting until Halloween for their chance to geek out.

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SacAnime is underway at the Sacramento Convention Center this Labor Day weekend, and is bringing out crowds in lots of costumes.

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For cosplayers, it’s the chance to shed the weekday work clothes for something a bit more creative.

The convention features video game and karaoke contests, as well as a change for fans to meet the voice of Mario from Nintendo’s Mario Bros. video game franchise.

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SacAnime runs through Sunday.