[btschaegg]

This very strongly reminds me of a game called "Hydroxis" (or at least I think so) for the Amiga. You started with water pooling in some cavity in an otherwise static level and had to move it to a target location by means of enabling and disabling some blocking segments in the level. That was fun!

I had remembered that one a decade or so ago and it turned out to be the single hardest thing I tried to find for my WinUAE collection :-(

[exlurker]

This must be it; Hydrocis: http://www.lemonamiga.com/?game_id=4277

[btschaegg]

YES!

Funny how one misremembered character can make an internet search that hard. :-)

You most certainly made my day! Thank you very much!