is a videogame in which the player controls a WWII Japanese monoplane. The pilot is required to destroy enemies to clear stages. It was released by Taito Corporation

Taito

Taito may mean:*Taito Corporation, a Japanese developer of video game software and arcade hardware*Taito, Tokyo, a special ward located in Tokyo, Japan*Taito, also known as matai, paramount chiefs according to Fa'a Samoa...

 in 1986 for the Famicom

Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...

.

Gameplay

The player's plane is equipped with machine guns and torpedoes and ammunition is unlimited.
The colour of the sky changes according to the time of the day (afternoon, evening, night).
F6F Hellcat

F6F Hellcat

The Grumman F6F Hellcat was a carrier-based fighter aircraft developed to replace the earlier F4F Wildcat in United States Navy service. Although the F6F resembled the Wildcat, it was a completely new design powered by a 2,000 hp Pratt & Whitney R-2800. Some tagged it as the "Wildcat's big...

s are common enemy fighter planes the player will encounter. Occasionally, the
player would run into a B-24 Liberator

B-24 Liberator

The Consolidated B-24 Liberator was an American heavy bomber, designed by Consolidated Aircraft of San Diego, California. It was known within the company as the Model 32, and a small number of early models were sold under the name LB-30, for Land Bomber...

and has to shoot each of its four propellers before the B-24 flies away. Sometimes when player has shot down a number of B-24s, he or she would encounter a falling satellite across the screen. A high amount of points would be rewarded if the satellite gets destroyed.

Enemy resistance comes not only from the air, but from land and sea as well. Sometimes, an American naval destroyer or submarine would try to down the player's plane with AA fire. Aircraft
carriers can sometimes be seen in the distant horizon (but can still be sunk with torpedoes).
At the end of a stage, the player faces a mobile shore battery on an island. This battery must
be destroyed in order to complete the mission.
There are bonus stages in this game.

Taking damage

If the player is hit even just once by enemy fire, his plane crashes and he loses one life point. The game is over when all life points are used up.

Graphics

The graphics in this game is, not surprisingly, very simple by today's standards.

Enemy surface warships do not appear to move past or under the player's plane. Instead,
they reach a point of closest distance (between player and surface warship) and then move back out into the horizon. This could be due to a glitch or graphical limitations with early console
games.

Sky Invader

A hacked version of this game made by an unknown manufacturer is known as Sky Invader. The differences between the original and the hacked version are:

• Different title screen.
• Different music.
• Different planes (both the player's and the enemies are modified).
• Different sky (the color of the background is always pink).
• The water color is darker.
• The player starts with 9 airplanes instead of 3 as in Sky Destroyer.
• The stages are called "wars".