Thanks for playing .
So this is taking place deep in underwater sea vents. I have written that part. Maybe its not so obvious with so much happening. I should have added a pause before jumping right into gameplay now that I think about it.
So not in RNA. We are trying to form RNA using the nucleo bases (rectangles) . So basically unstable volcanoes under the water. And that's the reason why the rectangles are being shot up. So I was thinking it must be dangerous for something to be that deep in underwater sea vents. A little rock could possibly deform and deep sea pressure would annihilate them. Since I have used rocks in earlier levels. Maybe this time I thought I will just have some gaseous bubbles or something. Probably rocks would do better. Hehe.
Once again, Thanks for the feedback. Appreciated