How to play Astral on Mac

Astral is a science fiction platform game. The action takes place in the land called Magoon. Imprisoned centuries ago demon Molasar was freed and gathers the strength to conquer the whole world. Master Almar sends his apprentice Andragon on the northern continent to avert the danger. The action takes place in four realms divided into sixteen levels. The player must collect the Power Crystals and place them in the Slots of Destiny, then destroy the gate of power and teleport. The realms are inhabited my numerous enemies with various skills and weapons. The enemies may be shot or avoid, although they are able to chase the player around the level. The player may use of scattered through the lands ladders, elevators and power-ups. After each completed realm a level code is provided.