Galaga '88

Galaga '88 is a fixed shooter arcade game that was released by Namco in 1987 and licensed to Atari Games for US manufacture and distribution. It runs on Namco System 1 hardware, and is the fourth title in the Galaxian/Galaga series. It was later released on the TurboGrafx-16 and Wii Virtual Console as Galaga '90 and on the Sega Game Gear as Galaga '91.

The premise is much the same as that of Galaxian, Galaga and Gaplus, but in many ways much more complex and difficult. The game is divided into five dimensions, each with four stages (except for the first dimension, which only has three). Most stages also include obstacles that appear once the enemies have fully assembled. The player's ship warps between the different stages and dimensions by collecting the "warp capsules" found inside these.

Several new enemies have also been introduced. Some can meld with each other and create giant versions of themselves, while others arrive in eggs, explode in a shower of fireworks, grow with multiple hits, or have protective shells that make them invincible while in formation. Certain enemies explode into small formations of tiny aliens that wiggle their way down the screen, and still others act as escorts to incoming groups of enemies and then quickly dive at the player before leaving the screen.