Great Giana Sisters, a platform-arcade game released by Rainbow Arts in 1987. It originally appeared on the C64. The success that has pushed the authors to convert this title to other computers, including the Amiga.

In the game we control the title Giana (in the two-day mode we will also control her sister Maria). The object of the game is to get a great diamond. The game is set in a dream Giany, fairy but also dangerous.

We have 33 levels to defeat. Each level must be completed before the appointed time. During the game we will collect points (for the acquisition of diamonds), overcome opponents (such as jumping on them) and collect power-ups (bonuses) to facilitate the game.

The game is very similar to the Nintendo Super Mario Bros. released at the time. But Nintendo has never filed a lawsuit against the publisher of Great Giana Sisters