Both are glitched and rewards are nerfed. Goes into negative hp once you clear the 2.5 mill hp mark. It gives out nerfed rewards twice such as 20 million in coins then takes the 2nd set of rewards away so really it should be giving out 40 million for doing 1 bill plus damage instead of 20 million, I hear the higher baal and cerb are glitch also, just food for thought. Also world boss error code 4 or something comes up often, needs to be fixed as well.