Game & Wario is a new mini-game collection on the Wii U which is a spinoff of Nintendo's popular WarioWare series. One of the included mini-games is Gamer, an aptly titled game about what it's like to be a young gamer.
Gamer is actually multiple games in one. The first is the overall meta-game. You are a kid (9-Volt from the WarioWare series) who is supposed to be asleep. But instead of sleeping you are playing video games on your "Ninevolt" portable gaming console.