Category: Arcade Game: Shoot-em-up
Machine: ZX-Spectrum 48K
Date: 1984
Original Publisher: Yoav Kaveh
Date: 2012
Original Publisher: Dmitry Egorov (Russia)
Date: 1983/Nov
Original Publisher: Interface Publications Ltd (UK) - type-in from book "49 Explosive Games for the ZX Spectrum"
Date: 2006
Original Publisher: Matt Barber (UK)