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Actually there are at least 8, including old version of Atlas. 

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Raqioth A'tlasyphoros Triabyssios Cool, what does it symbolize?

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2. Content Requests and Feedback
3. Clashing sound effects (imo)

Yeah, I'd have to agree with it. The two SFXs have clashing pitches and it sounds weird together.

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Ye, it’s kinda unfair. Oh and he has Galileo as well. :/

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Badge for creating 3000 videos. Awarded manually, so hidden. Galileo

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Exactly 3,703,617 energy points away as of this writing.

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Aaryan Bhattar I only have Maelstrom. Also, it's possible to get Maelstrom without Tesla, or Tesla without Maelstrm, or Atlas without Telsa, but you can't get Atlas without Maelstrom.

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Btw I found a really cursed badge: https://www.khanacademy.org/badges/1-week-streak

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3. The "Is Sal" Black hole badge

Apparently it's actually a custom badge. I can't find it anywhere in KA's code lol

1. Community
2. General Khan Academy Questions
3. The "Is Sal" Black hole badge

Just to make him stand out, probably