Gamer is 9-Volt and 18-Volt's minigame in Game & Wario, for Wii U. The game is played using the 's buttons. A stage based off the minigame makes an appearance in Super Smash Bros. for Wii U, titled Gamer. 5-Volt makes an appearance as a stage hazard.
Playing with their new console, 9-Volt and 18-Volt compete to find out who gets the high score in the game and 9-Volt wins. 5-Volt gets the console from them and order them to do their homework. After some time, 9-Volt and 18-Volt are done and get eager to play again. 5-Volt gives the console back, revealing she had beaten her son's score, making him shocked.
In this mode, the player must help 9-Volt to win microgames and avoid letting 5-Volt know that he is playing during his bedtime. She will constantly look into his bedroom through his door to see if he is sleeping, forcing the player to hide and pause the game. A time bar is displayed to show the amount of time 9-Volt could stay awake without playing it. The game ends if the player fails to hide it from 5-Volt, if the time 9-Volt can stay awake runs out, or if they lose all chance balloons. 5-Volt also may look through the window, or pop out from the TV. If the player receives at least 1000 points in level 1, 2, or 3 they will achieve Gamer status. If they score at least 30 points in the Endless level, they will also achieve Gamer status.
In this mode, 18-Volt is playing the console. This mode is very similar to WarioWare games, without specific time and with three difficulty levels for microgames, only ending when the player loses all four chance balloons.
Super Fly Swatter
When played in Gamer, one of the three will appear randomly over the course of the game.