Ggb0y (formerly Gboy) is a popular Finnish player and level creator in Geometry Dash. He is the creator of Cataclysm, which was the hardest Demon in the game for a long time and even considered impossible at one point. Ggb0y has also uploaded previews of other levels on YouTube. However, most of them were ditched soon afterward. In addition, he has created numerous other Demons such as Hyper Fantasy, Neon Overdrive, and MiracleFunk, and also made the popular level MLChristmas. With the help of Riot, he updated Cataclysm and made it harder, fixed bugs, and added three user coins into the level. He also released an Extreme Demon called Infernal Abyss, which was verified by YGYoshi.


Unrated Levels

  • 1space cube fly
  • 666challenge
  • BdoubleO II - The sequel to BdoubleO.
  • Cataclysm Copyable - A copyable of Cataclysm.
  • evw Challenge - A challenge level meant for EricVanWilderman.
  • Gboys challenge - A challenge level named after himself.
  • MLChristmas - A popular MLG level.
  • Mlg Sveg
  • Project Lava Temple
  • UnNamed666

Auto Levels

  • Astral sanctuary (featured)

Easy Levels

  • BdoubleO (starred) - A level that is dedicated to the YouTuber BdoubleO.

Hard Levels

  • Cosmic Beat (featured) - His first easy level.

Harder Levels

  • Lost Soul (featured)
  • Mystic jumper (starred) - A level that uses ~4,000 objects.
  • No Game No Life (featured) - A collaboration with Suomi and Pixagon.

Insane Levels

  • Neon Corruption (featured) - A collaboration with Pokey.
  • velocity mines (featured)

Demon Levels

Medium Demons

  • Ascend (featured)
  • Hyper Fantasy (starred) - A level that uses 20,095 objects. It was created in 2.5 days.

Hard Demons

  • MiracleFunk (starred) - His first level ever created. It uses 12,005 objects.
  • Neon Fantasy (featured) - A level that uses ~20,000 objects.
  • Theory of the Past (featured) - His entry into Zobros's Creator Contest.
  • Toxic Ruins (featured) - A toxic-themed level. It was verified by Link.

Extreme Demons

  • Cataclysm (featured) - His most famous level ever created. It was updated by Riot during Update 2.0.


  • He has progress videos of Cataclysm on his YouTube account but never had an actual completion of the level, so rumors began accusing him of hacking. He indeed hacked the level in 1.9 as he said at the end of the Cataclysm 2.0 update, which was verified by Riot.
  • Even though he's not creating levels anymore, he still participated in big mega-collaborations such as Subsonic.
  • His level, Hyper Fantasy, was created in 2.5 days.
  • Nowadays he plays Fortnite Battle Royale and Overwatch.