139 The Irregular Blade Effect » Sequel of Unlimited Rettousei. Had you ever wondered what would happen if the Citadel council meet a species that all its members have powers like the Asari but different, has a stronger military like the Turian, and tech more advance than the Salarian. All that without element zero, but more importantly, they do not want to follow their orders.

Idea - challenge to a Mass Effect story There are many stories where humans develop a new form of technology that does not need element zero, but what if there is another singularity that is unique to humans? How the citadel will react to that?

6 Tekkaman Meet Mass Effect A species that took the technology of its enemies and made it its own. Another species that believes to be the center of the universe. What could happen when he finds himself on a small world calling Shanxy.

5 Tekkaman Meet the 12 colonies One shot idea. Every crossover of BattleStar Galactica that I read is about colonial VS Cylons that lather found Earth, but what if the centurions want to destroy the humans form cylons as well and betray them the day of the attack to the colonies and years later the three side in conflict found an Earth that now is inhabited by Tekkaman, hundred years after the Radan's war.

37 The Irregular Familiar Magic. An element that exist in many worlds, but what happen when two worlds that have completely differents concepts of magic and their rules finally meet. One Shop for the moment.