He's mean. He's mighty. He's powerful. He's... three feet tall? Big heroics come in small packages when you set off on adventures with Knack, the unlikely hero of this entertaining game. He may be little, but he certainly doesn't stay that way, and he may be mankind's only hope against a dangerous new threat. So get ready to have your mind blown as you watch Knack reach beyond his size and save us all.An invading goblin army has threatened everything we know and it's up to you to team up with Knack and protect the world. The unassuming character tops out at three feet, but by harnessing the mysterious power of ancient relics, Knack transforms into a formidable warrior. The power of the relics can turn him into a powerful brute, or even a gigantic wrecking machine — but you must tread lightly. Too much power and the relics could put the entire world at risk. Brought to life by Mark Cerny, one of video games' greatest minds, Knack delivers thrilling adventure of colossal proportions and invites you to wield out-of-this-world powers and discover a dynamic and diverting environment.

The PS4 is a graphical powerhouse, able to deliver massive game worlds with impressive clarity and detail. 8GB of RAM allows for serious multitasking potential, complementing the great apps and features that make up the PS4 experience.The PlayStation brand of consoles has an impressive history of delivering world-class exclusive games, and the trend is sure to continue with the PS4. The growing blockbuster catalog is backed by a library of free-to-play and indie games, giving you flexibility in how you pay and play.The PS4 also acts as a social hub, with several built-in features that take advantage of the social networks you're already using. The controller's Share button opens up a world of video sharing, with the option to stream your gameplay live or record it to edit and post later.PlayStation Vita owners will enjoy the connectivity that ties the two devices together, from Remote Play, which allows you to play your PS4 games on your Vita's screen over a local Wi-Fi network, to Cross-Buy, which allows you to purchase a game digitally only once and play it on both your PS4 and your Vita.All PS4 consoles will need a firmware update and must be connected to the Internet to complete the update. While your console will not always need to be connected to the Internet, a one-time connection is required for the update.Online multiplayer requires a paid PlayStation Plus membership. Some features require a broadband Internet connection; ISP fees apply.PS3 games, controllers and some accessories are not compatible with the PS4.