Welcome to the Amstrad's budget brand version of Centipede. It's never going to be as good as the original, but is pretty decent as far as typed-in games go. It seems there is no story, so here is my own attempt, complete with obligatory iffy Google Translation:
"Gary the Garden Gnome was out for evening stroll in forest, when suddenly bright light came and was blind. The aliens arrived! They take the form of cuboid boxes of cardboard and advance upon Gary like centipede.
"As sole survivor of gnome race, you must throw stones at monster to turn them to trees. When all body parts are removed, Gary must survive the next wave of alien and prevent takeover.
"Can you save the universe from Centipod? Have fun!"
If you're the slightest bit interested (and after that story, you *should* be), you can find this game on the ultra-rare(?) 64 Typed In Programs compilation tape/disk.
It's also on this compilation, apparently.
Author: Aramello Chapman