Trolls and Tribulations1985

In the game, each player controls one of the two Bubble Dragons, Bub and Bob. The player can move along platforms, as well as jump to those above and to the side, similar to most platform games. The player can also blow bubbles. These can trap enemies, who are defeated if the bubble is then burst by the player's spiny back. Bubbles that contain enemies can be popped at the same time resulting in different foods being projected around the level. Each enemy trapped in a bubble equates to a different food. Food is consumed and transferred to points (an increasing scale of 1000 points is awarded for each enemy burst in tandem with another meaning: one enemy burst equals one food item worth 1000 points, two enemies burst equals two food items worth 1000 and 2000 points, three enemies burst equals three food items worth 1000, 2000 and 4000 points, and so on), which results in earning lives. These same bubbles also float for a time before bursting, and can be jumped on, allowing access to otherwise inaccessible areas. Players progress to the next level once all enemies on the current level are defeated. Enemies turn "angry" — becoming pink-colored and moving faster — if they are the last enemy remaining, escape from a bubble after being left too long or a certain amount of time has been spent on the current level. A monster will also become angry if either player collects a skull (the only negative item in the game), and the monster is hit by the resulting comet crossing the screen (however, this is a rare occurrence). After a further time limit expires, an additional invincible enemy appears for each player, actively chasing them using only vertical and horizontal movements. These do not need to be defeated to complete the level, and disappear once a player's life is lost. Contact with enemies and their projectiles (rocks, lasers, fireballs, etc.) results in death.

Rainbow Islands is a 1987 arcade game developed and published by Taito. The arcade version was licensed to Romstar for North American manufacturing and distribution. The game is subtitled "The Story of Bubble Bobble 2" and is the sequel to Taito's hit game Bubble Bobble from the previous year. It is the second of four arcade games in the Bubble Bobble series. The game was ported for numerous home computers and game consoles.

Can you reclaim your ancestors’ land? Evil forces have taken over the once fertile land of Fortiana. You are the only one who can storm the castles and claw it back from the hordes of dragons. Experience a new type of strategy and arcade game. Fence off parts of the battlefield to corner your enemies. Collect catapults and power-ups to besiege the fortresses and take on dragons. But beware! As you progress through the levels it gets harder and harder. The fortresses become much larger and the monsters more vicious. Can you emerge victorious and reclaim the land of your ancestors? You are knight Fortix, the sole hope for the desolate and tortured land of Fortiana to become the fertile land that it was before.

A port of "Parasol Stars: Rainbow Islands II" (also known as Bubble Bobble 3) for the NES was published by Ocean in 1992. Get ready for some finger-searing action as Bub and Bob blast their way onto your computer screen. Use four kinds of elements - Fire, Water, Lightning and Star - to overcome wave upon wave of nasties bent on ending your quest to rid the universe of the evil mastermind Chaostikahn! Whether you play alone or with a friend, stay alert! Your only hope of reaching the final showdown is to unlock the secret of Parasol Stars!

Although the third game in the Sabreman series, it was the first completed and withheld due to fears that sales of Sabre Wulf would be affected. The player, as Sabreman, has forty days to collect objects throughout a castle and brew a cure to his werewolf curse. He turns into a werewolf at night, as indicated by an onscreen timer, and returns to human form during the day. Each room is depicted in monochrome on its own screen and consists of blocks to climb and obstacles to avoid while the player solves puzzles and retrieves items for the cure.

Released in Europe and Australia, this version is different from the alternative Japanese and North American NES version and plays more like the original arcade game.

Released in 1989 on Apple II, by Taito Corporation.

Released in 1987 on MSX2, by Taito Corporation.