Gravity Rush

Gravity Rush is an action-adventure video game in which players take the role of Kat, a young woman who can manipulate how gravity affects her, allowing her to walk on walls and fly through the air. Kat navigates the game's open world of Hekseville both on foot using roads and walkways, and using her powers; activating Kat's abilities, the player tilts the PlayStation Vita, aiming Kat and allowing her to "fall" in that direction. Kat can use her abilities to walk on vertical surfaces or areas such as ceilings and the underside of structures. Kat's gravity-based abilities are tied to an energy meter which decreases when her powers are active. When fully depleted, Kat's powers deactivate until the meter recharges.

Combat takes place either on the ground or with Kat using her powers against enemies. When on the ground, Kat attacks by kicking enemies in their weak spots. When using her powers, Kat can rotate and aim at those weak spots. Increasing Kat's distance before using her powers increases the amount of damage. Some abilities used in combat, such as the ability to locate and lock onto weak points, are tied to a cooldown timer which must replenish before being used again.

Gravity Rush opens with an amnesiac Kat waking up in Hekseville, a floating city around a structure called the World Pillar. Kat is accompanied by a mysterious cat named Dusty; in saving a boy from being swept up in a gravity storm, she discovers that Dusty has the ability to manipulate how gravity affects her, enabling her to help people fight monsters spawned from the storms called Nevi. After saving Syd, a police officer who becomes her friend, she learns that those with her powers are dubbed "Shifters" by Hekseville's people. As she begins helping the city's denizens, she is confronted by fellow Shifter Raven, who sees her as an enemy.

Kat becomes involved in operations to catch Alias, a criminal linked to the Nevi — she eventually defeats him, sending him into a garbage crusher where he is killed. Alongside this, Kat helps restore sections of Hekseville swallowed by spatial rifts with the aid of Gade, a man who claims to be a "Creator". Kat restores all of Hekseville despite further interference from Raven, who apparently dies during a fight with Kat. Her exploits earn her the name "Gravity Queen".

The initial concept for Gravity Rush came to Keiichiro Toyama during the beginning of his video game career when he joined Konami. His initial idea was a vague image of people floating in space, with later concepts and ideas forming over time. Due to his work first at Konami as director for Silent Hill, Toyama was labelled as a horror game director, leading him to work for Sony Computer Entertainment on the Siren series working out of the company's Japan Studio development team. As Siren: Blood Curse was nearing completion, and noting the combination of increasing costs and decreasing revenue for horror games, Toyama decided to prove his ability to design outside the horror genre and turn his concept for Gravity Rush into a video game.

Toyama pitched Gravity Rush to Sony in April 2008 as a "gravity action" game for the PlayStation 3 (PS3) under the title Gravité. It was a title aimed at hardcore gamers which would be expanded with downloadable content (DLC). The main staff were made up of veterans of Toyama's Siren series.

Gravity Rush received "generally favorable" reviews from critics, according to review aggregator website Metacritic.

Famitsu called the setting "outstanding"; while James Stephanie Sterling of Destructoid said that while Kat was an "adorable" protagonist, the story became nonsensical by the second half. Edge Magazine said the story provided "an engaging blend of eccentric nonsense", providing engaging scenarios for Kat while also praising her for breaking away from the physical superhero norms. Mollie L. Patterson Electronic Gaming Monthly praised Kat as a protagonist, while Christian Donlan of Eurogamer praised the writing, narrative, and the light tone adopted to tell the story.