The game I'm after: It's a futuristic/sci fi one. All I can remember is that it seemed endless, there were heaps of rooms. I don't recall many 'baddies', it was a pretty neutral 'wandering' game. It was platform style. Some of the rooms had chutes which would raise or lower you like air-elevators. I don't remember much else... but I always think about it.

It's not 'Impossible Mission' as someone has suggested to me.
Does anyone have any ideas? I'm fairly sure it had a soundtrack running in the background too.

