|“||That moon is where we divide losers from winners, before adding them to the MegaCorp Games. There is challenger up there ready to reduce you to nothing!||”|
— Mathematician, GC
The Testing Facility Moon orbited the planet Dobbo. Lunar City was the only place there. Ratchet and Giant Clank had to travel up to Lunar City to fight the Thugs-4-Less Leader to prove to The Mathematician that they were worthy to enter the MegaCorp Games.
- Allgon Moon's city was also called 'Lunar City'.