Mega Man IV is an action-platform video game by Capcom for the Nintendo Game Boy. It is the fourth installment in the handheld version of the Mega Man series. The game continues the quest of the protagonist Mega Man in the struggle with his long-time nemesis Dr. Wily, who sends out a disruptive radio signal to cause a rampage, citywide destruction from dormant robots. Mega Man IV features the traditional action platforming gameplay of the prior games while introducing one new feature, the ability to purchase items with power-ups found throughout each stage. As with previous Game Boy releases, the game incorporates gameplay elements and bosses from two sequential Nintendo Entertainment System (NES) games: Mega Man 4 and Mega Man 5. The game has received a positive critical reception. In 2013, Mega Man IV was made available on the Virtual Console of Japan's Nintendo eShop for the Nintendo 3DS. It was later released in the North American and PAL region eShops the following year.