Reminds me of my Agar.io days. Very interesting indeed, but might get stuck in some section. I guess thats the part that requires the player to think the strategy eh. Overall, very promising to me.
Definitely loved the idea and creativity. If the scalers' collider boxes can be larger then all would be good. Maybe add a tutorial like how to teach others play coz people might be stuck in the first level without knowing what to do.