The Interdimensional Anti-Bacterian Organization "G" is a group that was introduced in Otomedius. "G" was created by people (and Gradians) from the future who discovered the multiverse's existence.
The "G" organization has been fighting the Bacterians for years. Its main defensive force are the Angel Squadron.
- "G" most likely stands for "Gradius", which the Otomedius series is a spin-off/parody of.