Batsugun is a vertical arcade shooter released in 1993 by Toaplan. The game attracted attention due to the large number of bullets fired by both enemies and allies.

This led many games to adopt the same type of gameplay. Batsugun thus became the pioneer of Bullet Hell. The "special" edition of the game was later released on home consoles.

The player can choose between 3 types of aircraft. The goal is to destroy all approaching enemies with shots and bombs.

In this way, the player can collect power-ups and experience points. When the experience gauge reaches a certain point, the player's aircraft evolves and becomes more powerful.

There is no difference between the types of aircraft in terms of performance, but the aircraft change between players 1 and 2.

The remote parts of a distant universe... A revolution took place on one of its planets.

• This is the original Arcade version of the game. The game consists of five stages until an end.
• Special Ver mode. It is a revised version of the game. The balance is better and various features have been added.
• The game repeats from stage 1 to stage 5 (14 stages in total).
• "Boost Up Hud" is a new interface that displays the experience gauge, current score (+ hidden bonuses), and the title of the BGM currently playing.
• Ranked Online Mode and the maximum score have been increased for more challenges.