Andrew Braybrook’s 1985 cult hit Gribbley’s Day Out is a strange kind of platform game in which you control a bouncing (and floating) head-on-a-foot, called Gribbly Grobbly.

You have to collect baby Gribblets before the creatures roaming around the landscape get to them first. Once you’ve found a Gribblet you then have to pick it up and return it to the safety of a nearby cave.

Gribbly can also blow bubbles out of his mouth and sometimes these bubbles will dislodge captured Gribblets from the jaws of enemies.

Parts of the landscape can be turned on and off with switches, and the gravity effect – which is always acting on you – is reasonably forgiving.

The hostile creatures in the cave live through a life cycle and it’s best that you understand this to effectively deal with them.

Rescuing Gribblets is still a tough task, though. But rewarding – if you can get your head around the game.

More: Gribbly’s Day Out on Wikipedia