About
Marble Blast Ultra is a GarageGames platform game released on January 25, 2006 for Xbox 360 via Xbox Live Arcade, the sequel to Marble Blast Gold. OpenMBU is a community-driven revival of Marble Blast Ultra for Windows. It is playable and adds new features such as controller options, fan-made content and Discord support.
How it differs from the original
Compared with the original Xbox 360 release, OpenMBU adds controller options, fan-made content and Discord integration.
History
The README notes the original was removed from the Xbox Live Marketplace in early 2011 after selling more than 756,000 copies; OpenMBU presents itself as a revival of that delisted game.