B-Wings

 is a vertically scrolling shooter first released as an arcade game by Data East in 1984. The game was ported in 1986 to the Family Computer. It was Data East's very first home release for the platform.
Gameplay.
The game consists of 45 levels (30 in the Famicom version), and no background story or plot is given. The player controls a robotic aircraft called the FX-1, and collects weapon power-up parts (called a "wing") to progress through the levels and ultimately destroy a series of enemy bosses known as the "GOBUNASU" at every end of the level. The game consists of two different top-view screen levels, where the player can press the second button to descend to the ground whenever they do not have a power-up. The player is unaffected by attacks from airborne units while they are playing on the ground level, but the ship is automatically brought back into the air after a certain period of time. The player can still be hit by attacks from ground units while they are on the ground level, and can also lose their ship by crashing into obstacles. The 8-way joystick controls the player's movements, and one button is used for shooting, and the other is used for descending to the ground (or un-equipping wings). The background image continues infinitely when the player scrolls in the horizontal directions.
The game was remade to the Famicom in 1986, but many changes were made to power-ups, sound effects, enemy attack patterns, and enemy appearances, making the gameplay considerably different from the arcade version. New additional background music was also included, and it also became possible to rapid-fire shots. Several warps and hidden items were also added, along with an ending screen. The bosses are also more resilient and requires multiple hits to destroy them.
Weapons.
Weapons can be equipped onto the player's ship by collecting power-ups that corresponds to certain weapons. Weapons come in the form of "wings" that attaches to the ship's sides and each has different abilities. The weapon can be ejected by pressing the secondary button before equipping a new one, and may also be damaged by enemy attack. Damaged weapons will disintegrate and eject automatically.
When the player has no weapon, the ship will simply shoot two small projectiles at the front.
Special weapons.
In the Famicom version, there are three additional weapons that can only be obtained by destroying certain obstacles;
Items.
In the Famicom version, several items are scattered throughout the levels, usually hidden underneath certain obstacle structures or randomly flying around the screen. Certain items disappears when shot, while others will change its effect.
Reception.
In Japan, "Game Machine" listed "B-Wings" on their November 15, 1984 issue as being the most-successful table arcade unit of the year.