Tokio is a vertical scrolling shooter game released by Taito in 1986. In the game, the player controls a red propeller-driven airplane, flying over the city of Tokyo. He's able to shot and capture other red, smaller planes, which then will follow the player in formation. The player can choose between 3 formations: the first is able to shoot both air-to-air and air-to-ground projectiles, the second only air-to-air (but on a larger area), the third only air-to-ground (but on a larger area as well). During gameplay, the player should react accordingly to the threats and quickly decide which one of the 3 formation types is more adequate at one given moment.

The game is divided in areas, depicting key places in Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

, such as Shinjuku, Akasaka

Akasaka, Tokyo

is a residential and commercial district of Minato, Tokyo, located west of the government center in Nagatachō and north of the Roppongi nightlife district....

, and Ginza

Ginza

is a district of Chūō, Tokyo, located south of Yaesu and Kyōbashi, west of Tsukiji, east of Yūrakuchō and Uchisaiwaichō, and north of Shinbashi.It is known as an upscale area of Tokyo with numerous department stores, boutiques, restaurants and coffeehouses. Ginza is recognized as one of the most...

. There are no clearly defined "levels", but at some points the player is faced by a giant mothership, which can be shot down by hitting its engines.

A port was released for the MSX 2 home computer in 1987.