Sonic the Hedgehog, Nintendo, The Last of Us, CounterSpy: Speed Run

Nintendo announced a partnership with Sega to publish the next three Sonic the Hedgehog games exclusively for Nintendo's platforms — one title of which is still unannounced. New Super Luigi U will be released digitally and as a physical standalone at retail this summer. Nintendo will bring playable demos of its unreleased titles to more than 100 Best Buy stores during the week of E3. We went hands-on with Naughty Dog's The Last of Us and Dynamighty's CounterSpy.

• Sega and Nintendo partnership spans three Sonic games, one unannounced
• Sonic: Lost World coming exclusively to Nintendo Wii U and 3DS
• Mario & Sonic at the Sochi 2014 Olympic Winter Games coming to Wii U
• New Super Luigi U coming to eShop June 20, standalone at retail Aug. 25
• Nintendo bringing playable, unreleased Wii U titles to Best Buy during E3 week
• The Last of Us hands-on: Humanity is a plague on the Earth
• The Last of Us lets players set the pace of their survival experience
• CounterSpy merges mythologies of the Cold War with espionage platforming