Bubble Symphony

Although a sequel to Bubble Bobble, the game features few changes to the gameplay formula of that title. The small changes that have been made are that a boss is now encountered every five to ten levels, giving those scenes a similar prominence to Rainbow Islands, and the player takes a branching route through the levels by selecting one of two doors after every boss. The players can now charge the bubble shot; if released when the dragon's horns or bow is glowing, the player character will breathe three bubbles at once, with the specific formation dependent on the character chosen. The players must collect certain square cards with music notes inside, in order to get the 4 keys that lead to the final world or face an early false ending. Also, the characters have to collect a rod to turn their characters from their dragon to human forms during the course of the game.

All the enemies from the original Bubble Bobble appear in this game, along with a lot of newer enemies. The credits (in the arcade version) show all the enemies' names, and those of characters who make cameos from other Taito games.

For this adventure, Bubblun and Bobblun, the familiar green and blue bubble dragons, are joined by girls Kululun (an amber dragon) and Cororon (a pink dragon), but they are stated to be the children of the Bub and Bob of Bubble Bobble.

According to the intro, the four characters (as humans) inadvertently unleash Hyper Drunk, the final boss, while reading books. Hyper Drunk transforms the four into bubble dragons and banishes them to a new world.

In Japan, Game Machine listed Bubble Symphony as the fourth most successful table arcade game of 1994.