Entirely unprovoked, a sullen black alien is casting deadly capsules earthwards. The cannisters of doom roll along a series of variously coloured shifting plates, finding egress at apertures across the width of the screen. Your cannon is consequently darting everywhere to nullify the antimatter.

Each miss, by you, means fewer human survivors and one more hole in the shuffling seive overhead. It's not too long before the drizzle of antimatter has turned into a torrent - that's when you'll want to turn the repetitive sound effects down.

Bright and breezy graphics; fast action; good use of 3.5K. Not at all bad.