This game presents three battlefields for our cowboy hero - grassy slopes overlooking the sea, a castle, and some mountainous terrain as a backdrop. A well created 3D effect is the background for hordes of black nasties to appear from all over the screen.
You can select from levels one to five and the aim is to shoot the Slymoids who gradually get larger and move faster. Another danger is the species which looks like a flying jellyfish which appears at the top of the screen before swooping lower and lower.
On clearing the screen, the graphics move smoothly left or right, at your discretion. You cannot enter the castle until the little beasts, arriving from every nook and cranny, are wiped out. Likewise for the grass area. You then move into the caves, where even the stalactites are untrustworthy, dropping from the roof and oozing towards you.
From the back of the cave hordes of bats arrive which must be dealt with in the same way. Points are scored by the location and types of Slymoid hit - the more difficult the shot, the more points you earn.
Each type of Slymoid has its own sound, so you have an early warning system. A little biology here. If spores escape off-screen or land on the ground, they change into three new Slymoids.
Should threeSlymoids get together in the same area, a new Slymoid is generated. Mary Whitehouse won't like this!
A lively game, with certainly different ideas. There are the usual Texas graphics, with good use of sound and a joystick or keyboard option.