Angry Birds (video game) crates and rocks are incorporated into the structures, and power-ups may be used to enhance the birds to attack hard-to-reach pigs. Also in the levels, players can unlock bonus levels by collecting golden eggs. There are several different types of birds used in the game, distinguished by their color and shape. In the earliest levels only the basic red bird is available. As the player advances through the game additional types of birds become available. Some birds are effective against particular materials, and some have special abilities that may be activated by the player while the bird is airborne. For
Angry Video Game Nerd was released in North America on April 2, 2015, and released in Europe on December 10, 2015. On June 4, 2015, a 3DS version became available for download in the Nintendo eShop. On July 17 of the same year, during ScrewAttack's annual SGC convention, Freakzone announced a sequel, "Angry Video Game Nerd II: ASSimilation", originally due for release in Winter 2015, but delayed to March 29, 2016. There have also been some unofficial, fanmade Angry Video Game Nerd games including "Angry Video Game Nerd's Angry Video Game", "Angry Video Game Nerd in Pixel Land Blast", "AVGN Game Over", "AVGN Game