From C64CG website, "Plug a joystick into port two, press fire to start; the controls do the obvious functions during play. To advance through the levels, you must make your way to the top of the screen, avoiding the robots and fully formed mushrooms. This game was influenced by Ivasive Action, a BASIC game originally released as part of Cascade's Cassette 50 on the C64 so thanks to the (anonymous) author of that for the original idea.

Life on the farming planet of Vegetron is quiet, idyllic and (if we're being totally honest here) deathly dull; all your job involves is patrolling the fields in your spaceship, perhaps repairing the odd software fault on a harvesting robot and to fill the long, depressing gaps between, chatting on the galactinet.

But things take a turn for the interesting when some alien spores land and begin to infect the crop; suddenly there are mushrooms everywhere, growing at an incredible rate and each one is at least twenty feet tall! Now would be a really good time not to be on Vegetron, so you clamber into your ship and head for the spaceport to use their interstellar launch facilities. Of course... that means you need to dodge the rapidly growing mushrooms and either avoid or blast the now deranged harvesters if you're going to make it in one piece."