Crossover?

If you could have Mass Effect have a crossover with any other game, movie or TV show which would you choose.

I like the thought of Alien Isolation or a Star wars crossover maybe even Halo would be really cool.

If you could have Mass Effect have a crossover with any other game, movie or TV show which would you choose.

I like the thought of Alien Isolation or a Star wars crossover maybe even Halo would be really cool.