You're a worm moving around the screen, leaving a trail as you go.
The object is to catch targets as you move to gain bonus points,
or to go straight to the flashing bluebottle to move on to the next
stage.
Here there are lots of blue flowers to be eaten for points, but
don't touch the white rocks or cross your own trail, or you'll
lose one of your three lives.
The next stage is a maze, and guess what's in there? More blue
flowers. If you manage this part, the end is in sight. Press A to
jump, let go, and you fall into a bottomless pit. What happens
then I can't say, not having got this far.
At first, because nothing was whizzing around the screen, I
thought I wasn't going to enjoy the game. Wrong - it became a
challenge, and the only thing that really got me down was the
annoying tune that played when scores and lives left were displayed.
One problem - twice while using the tape an "out of memory" message
appeared, which of course meant reloading the tape and starting again!