The unfortunate flaw with the Grand Liner's design is that due to its large size, it lacks speed and agility, forcing GoGoFive to switch over to Victory Robo against faster and more nimble Saima Beasts while its power output is so enormous that it sends harmful electric surges through the cockpit when active, inflicting pain on the pilots and forcing the GogoFive to undergo intense physical training to overcome it. Additionally, Grand Liner requires the 99Machines to be loaded into the Goliners in order to function at full strength otherwise it only has enough energy to fight for a few minutes. During the battle against Ghost King Salamandes, Analyse Robo Mint piloted the Grand Liner.