Zblast SD

## Description

_Zblast SD_ is a top-view, single screen shooter where you control a
spacecraft and have to destroy various waves of alien ships to amass a high
score with your cannon. You can move your craft around the screen, and as the
aliens move around the screen they will fire missiles at you. If you hit an
alien ship or its missile then you lose part of your energy which starts at
thirty, and once it reaches zero then it is game over. when all the aliens are
destroyed on the screen then the next wave of aliens appear but you do get ten
energy points added to your total.

Zblast SD