From the MiniGame website;

Straight, simple shooter. Fast gameplay, but IMO not very addicting. Quite simple graphics and sound. / thrust26

Good gameplay. / Zach

Very nice arcade game, with nice and extremely fluid animations, only in 1K (obviously!). / Symoon

Impressively complete clone of the Astro Invader Arcade. / Cybergoth

Very nice graphics - smoothly falling, twitchy aliens are perfect. A little hard to control; hard to lineup up with the aliens. Fun game, nice sense of panic. / vdub_bobby

This is my favourite of the Oric entries, and it's a nicely featured game. My only gripe is that the control is a bit finicky, making it hard to line up the invaders. / Matt_B