Does anyone remember this game from the 80s?

[DysgwrCymraeg]

My sister and I used to play this all the time and I'd love to try and find it but I can't see it on any lists of games from the 80s/90s.......
Imagine a grid that you could place marbles onto. The grid was made up of overlapping sliding panels with holes in them, arranged so that you couldn't always see where the holes were. The aim was to make your opponants marbles fall through the grid without letting yours fall through.
Anyone else remember it....?

Kerplunk?

Stay Alive?

Yes I had this! It was called Stay Alive, I loved it

This is Stay alive.

Yes! Stay Alive! Thank you so much - I knew I should've come here first before spending an hour trawling the Internet! 😁

Omg yes I loved this game

Stay Alive. Still have my 80s version - still gets played with! Great game.

Great game! I still have my original one somewhere.

Stay alive!!

DS's godmother has it. The alway ask to play it when we go there, despite being 14 and 12 abs dismissive of anything that doesn't plug in.