QS Defenda for the ZX81 www.youtube.com/watch?v=v-UT...#QSDefenda#ZX81#Action#Shoot'emup#Shmup#Shooter#SidescrollingShoot'emup#SidescrollingShmup#HorizontalShoot'emup#HorizontalShmup#QuicksilvaLtd#Quicksilva
YouTube video by Highretrogamelord
Protector for the ZX81 www.youtube.com/watch?v=Aqpu...#Protector#ZX81#Action#Shoot'emUp#Shmup#HorizontalShoot'emUp#HorizontalShmup#SidescrollingShoot'emUp#SidescrollingShmup#AbacusPrograms
Planet Raider for the ZX81 www.youtube.com/watch?v=PXKf...#PlanetRaider#PirateTreasure#ZX81#Collection#Compilation#Action#Shoot'emUp#Shmup#SidescrollingShoot'emup#SidescrollingShmup#NovusSoftware