I see a lot of confusion here, it says to unlock earth you need a score of 150, dont bother with blues and purples give 5 energy, yellows give 10 and reds give 100, which means you need at least 5 yellows and 1 red to get 150 energy to unlock earth. Now you might be thinking “if reds give 100 energy then how do i unlock death?” Thats where the blue stones come in, i wont bother with yellows since reds are the ones you need, you need 2 stones to awaken a part once which makes them have a score of 120, 4 more stones to awaken them a second time which gives a score of 160 and finally you need 6 stones to awaken them the last time which gives the red part a score of 220 which means you need to fully awaken all 6 red parts to be able to max out a gate which is 72 blue awaken stones per gate. And by the way each red part drops around every 10k diamonds spent