Game written in AMOS. Coding, graphics & music/sound FX by Ola Zandelin. Additional level design by Daniel Zandelin. Game includes a built-in construction kit and instructions. Game is available on 17-Bit PD disk #3305, PD-Soft disk #4248 and Assassins CD#2. Inspired by Tony Crowther's BOMBUZAL, the very first version of MARBLES developed was called BB BALL and was never officially released. A few years later, the graphics were updated, a construction kit included and the name was changed to MARBLES when coder Ola Zandelin finally released his first complete version of the game in 1991 to the eager Amiga masses. When asked what inspired the game, Zandelin had this to say: