Ggb0y (formerly Gboy) is a popular Finnish creator and player 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 afterwards. 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 recently released an extreme demon called Infernal Abyss, which was verified by YGYoshi.