Ooo bro i understood the concept black cant die, but white got health and the enemies which die on the left side comes to the right. I really like it such a polished game its very good bro 10/10 , music gameplay everything is awesome, there is nothing much to say about your game because its perfect but one thing i would like to mention that, don't display heath on back player because it confuses at start, it tells us that we have to protect both but in reality we only have to protect the white one.
Thats it very polished game , good experience.
I also request you to check my First Game Jam game also and give you honest opinion on that.
Thanks