Rocks'n'Diamonds

Check out the attached level, which I built and tested in R'n'D 4.1.1.0.

The amoeba grows to more than 200 squares - why doesn't it turn into boulders?

The amoeba fills all possible cells in the level - why doesn't it turn into diamonds?

Because it's not THAT amoeba you need. This amoeba tile behaves differently: it doesn't die nearby the player, it doesn't turn into rocks when growing way too long and also it changes by slowly exploding all amoebas from the last amoeba tile died. The amoeba you need for that is "AMOEBA (BD STYLE)". This one behaves just like Boulder Dash amoeba: it dies even if player blocked the last empty tile, it turns into rocks after growing way too long and turns into the content instantly.

Thanks Eizzoux. I get now that this amoeba doesn't ever grow too big, so it never turns into rocks. It seemed to me that it never turned into content either, even when it had grown to fill the entire level. But perhaps I didn't give it long enough. I'll try again.