Rilgar

Rilgar is home to Blackwater City.

Ratchet & Clank
When Ratchet and Clank first arrived on Rilgar they headed for the Hovercon Intergalactic Hoverboard Competition, passing through Blackwater City itself to get there. In the city they found that the news report they saw on the Blarg Tactical Research Station was correct. Blackwater City was being overrun by Amoeboids. While passing through the city they came across a black market salesman. In the conversation the three had, Clank deduced that the man lifted the weapon from the Blarg. The man offered to sell Ratchet a R.Y.N.O. for a hefty price of one hundred fifty thousand bolts.

They continued through the city until they reached the entrance to the racetrack. Ratchet one the championship and was rewarded with a Model T-15 Platinum Zoomerator, which allowed him to gain a speed boost on his hoverboard by performing tricks.

After the races the duo heads through what appeared to be the city's sewers to reach Captain Qwark's trailer. When they got there, Qwark's Bouncer forces Ratchet and Clank to give him a bribe of four thousand bolts before allowing them access into Qwark's trailer. Once the two got inside they finally got to speak with Captain Qwark. Qwark tells the two of them to meet him at his base on planet Umbris for further instruction.

Ratchet & Clank: Up Your Arsenal
Two years later, Dr. Nefarious sends out a Tyhrranoid invasion within the city. The Galactic Rangers try to fight them off, but are outnumbered. One of them manages to contact Ratchet to request help. Ratchet manages to reach the city and, along with the Rangers, take out the Tyhrranoid army and secure the city. One of the Rangers gives him Gravity Boots as thanks for saving the city.

If you have already completed Holostar Studios, Skidd McMarxx will call and inform Ratchet that Courtney Gears is at the Obani Moons. Ratchet informs him to flee, but it is too late as Skidd is captured by Gears and taken to her lair.