Introduction
Rainbow Islands: The Story of Bubble Bobble 2 (レインボーアイランド) is a 1987 arcade video game developed and published by Taito,with the arcade version licensed to Romstar for North American manufacturing and distribution. The game is the sequel to Bubble Bobble from the previous year, and it is the second of four arcade games in the series (followed by Bubble Symphony and Bubble Memories, but itself has two direct sequels: Parasol Stars and Bubble Bobble Part 2). The game was ported to home computers and home video game consoles.
The "bubble dragons" of the first game, Bubblun and Bobblun (known as "Bub and Bob" in the western releases) appear in Rainbow Islands in their human forms as "Bubby" and "Bobby". Also unlike the first game, players must now "alternate" (i.e., take turns), with player one as Bubby (green shirt), and player 2 as Bobby (blue shirt).
Game Play
Following the events of Bubble Bobble, Bubby and Bobby set out to defeat the "Dark Shadow" and rescue the Rainbow Islands. The Dark Shadow is the entity responsible for the events in Bubble Bobble. The game is set on a chain of ten islands, each one with a different theme. Each island provides four rounds of game-play, and once these are complete the player moves to the next island in the chain. In each round the player must get to the top before the sea level rises and kills them. The islands get progressively more difficult, with enemies moving much faster on the later ones. These are depicted on a map screen before the start of each island.
Players can release rainbows that act as weapons, makeshift platforms, and item collectors. Slinging rainbows damages any enemies and acquires any items that the rainbows come in contact with. When jumped upon, they fall down, beating any enemies below them, and releasing a damage field above them. Collecting power-ups increases the player's speed, the speed of the rainbows and how many are spawned. If players take too long in a level, water will start to rise up from the bottom of the stage, and will kill the player character if it rises above his head.
This guide is based on information from the original source: Rainbow Islands Wiki.