Released in October 1994 in Europe.
This game is known in Japan and North America as "Bubble Symphony
" (both names for the game have been used in Europe) and is unofficially Bubble Bobble 4, since three earlier arcade games featuring the same characters exist (more if the 'Puzzle Bobble' series is included). It could even be called 'Bubble Bobble V', since a cartridge for the NES/Famicom exists as 'Bubble Bobble 2' in Japan and as 'Bubble Bobble Part 2' in the US.
In the attract mode title sequence, Bubblun appears in front of a closed red curtain (which will turn blue if the 'Game Mode Select' code is entered) announcing, 'Ladies and Gentlemen, this is... Bubble Bobble II!' The curtain then opens on the cast of enemies as follows :
Bottom row (left to right) : Flhoop, Uni Bo, Drunk, Banebou, Invader, Zen-Chan, Mighta, Rappappa, Catch Maru, Roboj, Hattonton
2nd row from bottom (left to right) : Monsta, Komso, Kabukky, Mya-Ta, Heita-Kun, Warurin, Hidegonsu, No-No, Upper, Ame Da-Ma, PulPul
2nd row from top (left to right) : Robol, Rocketl, Yuki-Bombo, Mummy, Chu-Chu Man, Jiji Poppo, Kiri Kabu Kun, Bolt Man, Strong Shell
Top row (left to right) : Dorabo, Ouji Sama, Knightron, Dranko, Magician, Denkyu-Kun, Ankororin
Not pictured : Puka Puka, Bake Couchin, Killer Hijia, Ti Ta Ma, Kasabe, Kon-Chan, Mimic, Skel-Monsta, Nyororin, Rascal, Yu Bo, Unicoron, Cerberorin, Kabu-Chan, YZK-Takami, Golem
In the closing credits, PulPul's name is listed as 'Puru Puru'.
The enemy known as 'Catch Maru' can be seen in two different color schemes : one with a blue robe and purple shoes (as seen in the attract mode title sequence), and one with a green robe and blue shoes.
The game forbids the initials 'SEX' on the high score table. If you try, it gets changed to 'H !'.
There are a grand total of 164 rooms in the game, including 18 boss rooms.
A prorotype version is known to exists: it have many differences from the final version, it’s almost an entirely different game, lacking even a title screen at the point in development it comes from. Levels, graphics, enemies, sound and music are different, gameplay is different, stage names are different, stage selection is different, no story sequence, no high score sequence, no game logo during attract, it’s really more of a proof of concept sequel than anything close to a finished game at this point and that's what makes it fascinating. The build date is close to a year before the final game, a lot changes in one year of development.