In
Zanac, the player controls the spaceship
AFX-6502 Zanac as it flies through various
planets,
space stations, and
outer space and through an
armada of enemies comprising the defenses of the game's main antagonist—the "System". The player must fight through twelve
levels and destroy the System and its defenses. The objective is to shoot down enemies and projectiles and accumulate points. Players start with three lives, and they lose a life if they get hit by an enemy or projectile. After losing a life, gameplay continues with the player reappearing on the screen and losing all previously accumulated power-ups; the player remains temporarily invincible for a moment upon reappearing on the screen. The game ends when all the player's lives have been lost or after completing the twelfth and final area. However, the player can earn
1-ups (extra lives) throughout the game by accumulating high point scores.
Zanac has a
continue option which allows players to restart the game from the level in which they lost all their lives. As the main cannon's power level is upgraded, the number of bullets fired from the ship as well as their speed increases. In addition, the player operates a specialty weapon that is separate from the main cannon. There are eight different specialty weapons, each represented by differently-numbered power-ups. The player can change the type of specialty weapon equipped by collecting a differently-numbered power-up or can upgrade their current specialty weapon by collecting a numbered power-up that matches their current weapon. These weapons range from directional bullets to shields to indestructible projectiles. Players lose all accumulated power-ups if they lose a life. version Enemies in
Zanac include
meteors, various bullet-shooting enemy aircraft, bullet-resistant disks, ground turrets, and
reconnaissance planes. The
bosses consist of stationary fortresses consisting entirely of ground turrets. The player must destroy all these turrets within a specified time limit to score bonus points. Every stage has one or more of these stationary fortresses. In addition, large enemy ships acting as "mini-bosses" appear throughout the game. These ships are more resistant to the player's weaponry; all bullets inflict minor damage and are repelled off the mini-bosses, which change color as they become more damaged. The ALC increases for experts but decreases for inexperienced players. For instance, shooting the main cannon frequently, collecting power-ups, and failing to destroy bosses within the specified time limit increases the ALC, resulting in a greater number of tougher enemies appearing on-screen. However, actions such as losing lives, starting a new level, or destroying reconnaissance planes reduces the ALC, resulting in fewer on-screen enemies. ==Plot==