In MKM: Mecha Kaiju Mars the prosperous colony of Mars is attacked by aliens in a first contact incident. People argue about how to respond: some want to worship the aliens, some want to negotiate, and some want to stop them from taking over. The aliens quickly attack, killing all the adult mecha pilots. The teenagers need to get into giant robots and defend their colony from an invasion of giant monsters. Check out this sci-fi space opera by genre writer Dalton Lewis.