Hard mode?

Hi Yordles,

what do you think does this game need a hard mode? I like the gamplay realy played yesterday the first 3 missions =). But i think its a bit to easy becouse most of the time you could save and clear as long minions till you got a full comandline and start then the mission. Best example was mission 2 at the first try we tryed to rush a crystal and failed becouse of 3 times in a row rowling the same collor... At the second try we stayed at the center of the map till we got our comandlines full and cleared complete sides of the board easy.

I think a round counter with additional escalations would be great. (spanning minions on all sides after round 4 etc)