: The game spans 18 progressive levels , alternating between deep space and planetary surfaces, each ending in a massive boss battle.
There are currently two primary ways to experience this classic on your Android smartphone or tablet: demonstar game for android
: The game features three main weapons that change based on the color of collected power-ups: yellow Proton Lasers , blue Ion Cannons , and red Plasma Cannons . : The game spans 18 progressive levels ,