Many players never finished the second (which had a very difficult ending) and most of the others never got past the third level. Various upgrades, numerous on the first tier but becoming rarer later, allow the exponential growth of seven different spacecraft weapons (pistol, stack, side shots, homing missiles, plasma, magma, and laser beam).
Players control a spaceship of their choice, fighting hundreds of alien ships. The game resembles Konami's side-scroll shooters, such as Gradius, Salamander or Parodius. It was developed and published by Team17. Is a horizontal scrolling shooter for the Amiga released in 1992.