when i was a kid, i remember playing a browser game where sea polyps would slowly descend from the top of the screen and the player had to attach them to a substrate, like a rock or the sea floor, in order to stop pollution by allowing coral reef to grow. the more polyps you helped find a substrate, the more points you earned (?) and you'd eventually pass on to the next level. it would get increasingly difficult to do so when the polyps wouldn't reach a certain area. i believe there was a huge "pollution fish" boss at the end which would spit some sort of green goop to kill the growing reef/dirty up free space for reef to grow.
it was such a good browser game. i think it's been 13 years since i last played it, now it's nowhere to be found. i tried searching for keywords "anemone", "polyp", "coral reef". might have played it on click.jogos and ojogos (both of which were some of brazilian children's most popular game websites at the time) but it showed no results, and considering most of the games i played back in the day were whipped out when flash support went out of usage, it's likely this one didn't survive either.
