Solana Troopers, also known as Galactic Ranger Robots or Police-Bots, were robots which acted as on-foot soldiers for the Galactic Rangers. They acted as police officers for the Solana Galaxy, as well as guards for the Hall of Heroes, and participated in the Holovision show Ranger Workouts. The Solana Troopers were very similar in appearance to Cronk. They are dark blue in colour, with a light blue button on their torsoes. Troopers have a single yellow eye and blue antenna, both of which turn red in times of danger. During battle, they wield a single yellow Combuster.
During the invasion of Aleero City, Solana Troopers engaged the blarg warbots. However, though putting up a good fight, wielding Combusters and Negotiators, the robot troops could not stop the assault and most were destroyed in the battle, though Ratchet and Clank were still able to save the city by destroying the Mothership.
- In the movie, a Solana Trooper screamed "Wilhelm!" while witnessing a fellow Trooper die after falling from the Hall of Heroes, uttering the famous Wilhelm scream.