Waterworld , based on the 1995 movie of the same name, has you assuming the role of Mariner with the mission of protecting the Atollers from the vicious, pillaging Smokers.
The game's underlying concept is similar to Williams' coin-op classic Defender. You must destroy all the enemies in the area while preventing them from capturing the Atollers. If an Atoller is captured, you can still rescue it by destroying the Smoker before it leaves the playing area.
The gameplay revolves around navigating through levels, defeating enemies, and rescuing captured Atollers. Your goal is to destroy all the enemies in each level while keeping the Atollers safe. The game ends when you run out of lives.