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.

Because of its size, Lunar City had a low gravity field, which allowed Giant Clank to jump much higher than on either planets Quartu or Veldin in the original Ratchet & Clank (2002 game).




Notes and references